Chronic Sleep Disturbances and Borderline Personality Disorder Symptoms

Chronic Sleep Disturbances and Borderline Personality Disorder Symptoms

Abstract

Objective

Few studies have examined the experience of chronic sleep disturbances in those with borderline personality disorder (BPD), and further establishing this association may be pertinent to enhancing current treatments, given the relevance of sleep on emotion regulation and stress management.

Method

Data were analyzed (N=5,692) from the National Comorbidity Survey – Replication Part II sample (NCS-R; Kessler & Merikangas, 2004), which assessed personality disorders and sleep problems. Rates of chronic sleep disturbances (difficulty initiating sleep, difficulty maintaining sleep, and waking earlier than desired), as well as the consequences of poor sleep, were examined. Indices for BPD diagnosis and symptoms were used in logistic and linear regression analyses to predict sleep and associated problems after accounting for chronic health problems, Axis I comorbidity, suicidal ideation over the last year, and key sociodemographic variables.

Results

BPD was significantly associated with all three chronic sleep problems assessed, as well as with the consequences of poor sleep. The magnitude of the association between BPD and sleep problems was comparable to Axis I disorders traditionally associated with sleep problems. BPD symptoms interacted with chronic sleep problems to predict elevated social/emotional, cognitive, and self-care impairment.

Conclusions

Sleep disturbances are consistently associated with BPD symptoms, as are the daytime consequences of poor sleep. There may also be a synergistic effect where BPD symptoms are aggravated by poor sleep and lead to higher levels of functional impairment. Sleep in patients with BPD should be routinely assessed, and ameliorating chronic sleep problems may enhance treatment by improving emotion regulation and implementation of therapeutic skills.

Keywords: borderline personality disorder, insomnia, fatigue, sleep, emotion dysregulation

Although not traditionally thought of as a disorder associated with sleep disturbances, there is growing evidence that those with borderline personality disorder (BPD) experience a variety of problems with sleep, including: increased sleep onset latency and low sleep efficiency during polysomnograpahy assessments (Bastien et al., 2008), abnormal sleep architecture (Battaglia et al., 1999), and nightmares (Asaad et al., 2002; Selby, Ribeiro, & Joiner, in press). Sleep problems are clinically pertinent to BPD, as they are linked to functional impairment (Roth et al., 2006) and emotion dysregulation (Zohar et al., 2005). To date minimal research has systematically examined sleep disturbances in BPD, particularly chronic sleep problems. Chronic sleep problems involve difficulty sleeping most nights for an extended period of time (often lasting weeks to months), as opposed to acute sleep problems, which may last for a few days or arise intermittently, and can lead to major problems in daily functioning (Simon & Von Korff, 1997). Research is also lacking on BPD and the daytime consequences of chronic sleep problems, such as excessive daytime sleepiness, poor sleep related fatigue, and difficulties engaging in activities due to poor sleep. Importantly, BPD may increase vulnerability to sleep problems, due to issues such as emotion dysregulation, and poor sleep may result in elevated daytime functional impairment.

Improving our understanding of sleep disturbances in BPD is also relevant to improving our interventions. At present, dialectical behavior therapy (DBT; Linehan, 1993) is the only psychotherapy for BPD that specifically addresses sleep problems. Improving the sleep of patients with BPD may aid in improving their ability to manage stressful situations, employ coping skills, and improve overall levels of energy and positive affect. In turn, improving the ability to manage stress may further reduce sleep problems (Carlson & Garland, 2005). Those with BPD also frequently experience suicidal ideation, the experience of which has itself also been linked to sleep problems (Sjostrom, Waern, & Hetta, 2009; Wojnar et al., 2009). This makes it important to determine if the sleep problems of those with BPD also occur beyond the context of suicidal ideation.

Previous studies on sleep and BPD have involved small samples, often during acute polysomnography studies, and none to date have examined BPD and chronic sleep problems in a large epidemiological sample. One advantage to using such a sample is reduced treatment seeking bias, and increased understanding of how these issues affect people in the community at-large. Another advantage is the ability to control for Axis I disorders that are intertwined with acute and chronic sleep problems (e.g., depression, anxiety disorders) – an important issue given the role of comorbidity in BPD (Lenzenweger et al., 2007). The purpose of the present study was to examine chronic sleep disturbances, poor sleep related consequences, and social/emotional and cognitive impairment as a function of poor sleep in those exhibiting BPD symptoms with the National Comorbidity Survey Replication (NCS-R; Kessler & Merikangas, 2004).

Methods

Sample and Diagnostic Assessment

The NCS-R was a nationally representative, IRB approved, survey of adults age 18 and older conducted between 2001 and 2003, designed to involve multi-stage clustered area probability sampling. Overall, the survey consisted of 9,282 respondents, with an overall response rate of 70.9%. All respondents in the NCSR completed the Part I diagnostic interview, which consisted of the WHO Composite International Diagnostic Interview (CIDI 3.0; Kessler & Usun, 2004), and included diagnostic information on anxiety disorders, mood disorders, and substance use disorders. Blinded clinical reappraisals of a probability subsample of the NCS-R indicated good concordant validity between the CIDI and DSM-IV Axis I diagnoses (Kessler et al., 2005). In addition to completing assessment the CIDI, a probability subsample of respondents (N=5,692), with and without DSM-IV diagnoses, also received the NCS-R Part II interview, which also assessed personality disorders and sleep problems; only NCS-R Part II data were used in this study.

BPD Symptoms

Respondents completed eight questions taken from the International Personality Disorder Examination (IPDE) screening questionnaire (Loranger et al., 1994) designed to measure BPD symptoms. These items have been used extensively in examining personality disorders (Lenzenweger, 1999; Lenzenweger et al., 2007), and have been found to significantly predict personality disorder diagnoses when the IPDE was clinician administered (Loranger, 1999; Loranger et al., 1994). Furthermore, the more IPDE items endorsed the higher the probability of personality disorder diagnosis obtained using structured clinical interviews (Lenzenweger et al., 1997). Items were rated with a dichotomous yes (1) or no (0) answer, and all were summed to create a continuous measure of BPD (a= .74). Importantly, clinical reappraisal interviews were previously conducted by phone on a probability sub-sample of 214 respondents from Part II of the NCS-R and screened positive for personality disorder symptoms, and clinical reassessments with the IPDE were highly correlated (r>.90) with these items (Lenzenweger et al., 2007)1. Of note, because the NCS-R included a separate suicidal behavior assessment, the IPDE BPD question on suicidal and self-injurious behavior was not included. As a result of this missing criterion, three indices of BPD were generated for use in this study: 1) a dichotomous measure for those endorsing 5+ diagnostic criteria for BPD (to obtain odds ratios), 2) a continuous measure of BPD symptoms, and 3) a dichotomous BPD diagnosis (5+ symptoms endorsed) including occurrence of a lifetime suicide attempt (from the suicide assessment below).

Regarding the distribution of BPD symptoms, Selby (2013) found that the base rates (BR) of BPD symptoms in this sample, as well as the endorsement of those symptoms by those with BPD (diagnostic sensitivity; DS), were well represented: intense anger (BR=23%, DS=73%), affective instability (BR=30%, DS=90%), chronic emptiness (BR=21%, DS=83%), identity disturbance (BR=19%, DS=73%), stress-related paranoia (BR=17%, DS=69%), avoiding abandonment (BR=12%, DS=60%), impulsivity (BR=40%, DS=89%), and unstable relationships (BR=15%, DS=60%). Thus, those with BPD in this sample exhibited the full spectrum of BPD symptoms.

Chronic Sleep Problems

Three common sleep problems assessed during Part II of the NCS-R were used: 1) delayed sleep onset latency (SOL; “nearly every night it took you two hours or longer before you could fall asleep”), 2) amount of time spent awake after sleep onset (WASO; “you woke up nearly every night and took an hour or more to get back to sleep”), and 3) waking earlier in the morning than desired (EMA; “you woke up nearly every morning at least two hours earlier than you wanted to”). Each was prefaced as happening for “periods lasting two weeks or longer in the past 12 months.” All were consistent with DSM-IV definitions for the associated sleep problem, and have been reported on previously (Roth et al., 2006).

Poor Sleep Consequences

In addition to chronic sleep problems, this study examined the consequences of poor sleep using three assessments: 1) problems “feeling sleepy during the day,” 2) feeling fatigued during the day due to “poor sleep,” and 3) frequency of being “too tired to complete daily activities” as a result of poor sleep. All questions were assessed in the same section as the questions about chronic sleep problems, above. The first question, on daytime sleepiness, was coded as yes (1) or no (0) for the experience of daytime sleepiness most days for two or more weeks in the past 12 months. The second question, relating to daytime fatigue as a result of poor sleep, and the third question regarding frequency of being too tired to carry out daily activities, were rated on 4-point Likert scales regarding frequency of the experience of the problem during the worst month in the past year. Both were originally rated (1) never, (2) rarely, (3) sometimes, and (4) often during this time period. In order to simplify the presentation of results and present odds ratios, these items were recoded to reflect that “(4) often” experience of this problem was recoded (1), and all other ratings were coded (0).

Functional Impairment

Six outcomes were utilized from the World Health Organization Disability Assessment Schedule II (WHO-DAS II; Chwastiak & Von Korff, 2003), a 36-item measure for general disability impairment. Respondents reported the severity of each problem over the last 30 days regarding for the following: 1) days having been totally unable to work or carry out daily activities (days out of role), 2) days able to carry out normal activities, but with reduced workload or inhibited productivity (reduced work quality), 3) difficulty caring for oneself with activities such as hygiene (self-care), 4) difficulties with physical mobility, 5) cognitive impairment (e.g., difficulty remember things, etc.), and 6) difficulty with social and emotional role performance (e.g. controlling emotions when around other people). Each scale was scored with the complex method (Chwastiak & Von Korff, 2003), which involves item response theory, and results in a continuous scale range from 0 (no disability) up to 100 (full disability)2.

Comorbid DSM-IV Disorders

All respondents were rated for Axis I diagnoses with the CIDI, which has good concordance with other structured clinical interviews (Kessler et al., 2004; Kessler et al., 2005). The presence of the following over the last 12 months were included as covariates in all analyses: major depressive disorder (MDD), dysthymia, manic episode, alcohol and drug dependence, panic disorder (with and without agoraphobia), generalized anxiety disorder (GAD), and post-traumatic stress disorder (PTSD). Each of these disorders has sleep problems as a symptom or has been linked to sleep problems, and their inclusion allowed for benchmarks to compare the association between BPD and sleep problems to. To examine comorbidity, variables were generated to indicate presence (1) or absence (0) of any two or three Axis I disorders.

Suicidality

As a part of the CIDI, all respondents completed a suicide risk assessment that included lifetime history of suicidal behavior as well as suicidal behavior in the last 12 months. Those who had “Seriously thought about committing suicide” were coded and used as a covariate in analyses, and the presence of a lifetime suicide attempt was also used to generate one of the BPD indices described above.

Socio-Demographic Control Variables

These variables from the NCS-R were included in all analyses due to their potential impact on sleep problems: age, sex, race-ethnicity, education level, marital status, occupational status, family income level, and number of pre-school children living at home. The relationships between covariates and personality disorders and sleep problems has previous been reported on (Lenzenweger et al., 2007; Roth et al., 2006). Also included was the presence or absence of any one of the following chronic health conditions endorsed, due to potential sleep interference: arthritis, neck or back ache, headaches, chronic pain, chronic allergies, stroke, and heart disease.

Data Analytic Strategy

Logistic regression analyses were used to examine sleep problems and consequences, with the coefficients and their standard errors exponentiated as odds ratios with 95% confidence intervals. All analyses included medical, sociodemographic control variables, comorbid Axis I disorders, and presence of suicidal ideation in the last year; adjusted odds ratios (AORs) were presented. Finally, the interactions between BPD symptoms and chronic sleep problems in predicting functional impairment were examined with linear regression. Because the NCS-R was a complex sample, involving clustering, stratification, and weighting specific to Part II, in order to adjust for potential differences in probability of selection for the sample data analysis had to account for these procedures. Accordingly, standard errors of the logistic regression and linear regression analyses were adjusted for these sampling and weighting procedures with the COMPLEX function of MPlus statistical program (Muthén & Muthén, 2010).

Results

Prevalence of Sleep Problems and Borderline Personality Disorder

A total of 63% of those meeting diagnostic criteria for BPD (5+ symptoms endorsed) reported having at least one of the sleep problems assessed. The average duration for sleep problems for those with BPD was 19.9 weeks (SD=21.6), which was significantly more than those without BPD (M=8.9, SD=17.2; F1, 6590= 45.4, p<.01, d=.60). As seen in Table 1, those with BPD reported significant experiences with delayed SOL (AOR=1.8, wald=33.3, p<.01), WASO (AOR=1.9, wald=41.3, p<.01), and EMA (AOR=2.3, wald=64.8, p<.01). BPD diagnosis was also a significant predictor of having all three chronic sleep problems (27% of those with BPD; wald=37.75, p<.01, AOR=2.1). BPD associations with each of the chronic sleep problems were of similar magnitudes as disorders traditionally linked to sleep problems or involving sleep problems in diagnostic criteria (e.g. GAD, MDD, PTSD, etc.).

Table 1

Multivariate Logistic Regression Analyses Predicting Sleep Problems (N=5,692)

DSM Diagnosis Sleep Onset Latency > 120 Min Wake After Sleep Onset > 60 Min Early Morning Awakening > 120 Min

% Yes AOR (95% CI) % Yes AOR (95% CI) % Yes AOR (95% CI)
Chronic Health Problem Present 24 2.2 (1.8–2.6)** 30 2.3 (1.9–2.7)** 24 1.9 (1.6–2.3)**
Major Depressive Disorder 39 1.6(1.3–2.1)** 47 2.1 (1.6–2.6)** 34 1.4 (1.1–1.7)*
Dysthymia 55 1.6 (1.1–2.4)* 60 1.4 (1.0–2.1) 50 1.6 (1.1–2.3)*
Mania 51 1.8 (1.3–2.6)** 51 1.9 (1.3–2.7)** 47 1.7 (1.2–2.5)**
Alcohol Dependence 48 2.0(1.2–3.6)* 48 2.8(1.6–5.0)** 37 1.8 (1.0–3.3)
Any Drug Dependence 42 .5 (.2–1.3) 39 .6 (.2–1.4) 37 .7 (.3–1.8)
Generalized Anxiety Disorder 45 1.6 (1.2–2.1)** 51 1.7 (1.3–2.2)** 42 1.5 (1.2–2.0)**
Panic Disorder 45 1.2 (.9–1.7) 52 1.6 (1.1–2.2)** 44 1.4 (1.0–2.0)*
Posttraumatic Stress Disorder 48 1.9 (1.4–2.5)** 57 2.5 (1.9–3.3)** 44 1.8 (1.3–2.4)**
Severe Suicidal Ideation 48 1.4 (1.0–2.0)* 50 1.3 (.9–1.9) 42 1.3 (.9–1.8)
Any 2 Axis 1 Disorders 44 1.2 (.9–1.7) 48 1.0 (.8–1.4) 40 1.2 (.9–1.6)
Any 3+ Axis I Disorders 53 .8 (.5–1.1) 57 .7 (.5–1.0) 45 .6 (.4–1.6)*
5+ BPD Symptoms 44 1.7 (1.4–2.1)** 47 1.9(1.6–2.3)** 43 2.2 (1.8–2.7)**

BPD Symptoms Continuous 1.2 (1.1–1.2)** 1.2 (1.1–1.2)** 1.2 (1.2–1.3)**
5+ BPD Symptoms Including Lifetime Suicide Attempt 44 1.8 (1.5–2.3)** 47 1.9(1.6–2.3)* 43 2.1 (1.7–2.6)**

Note: Percentages refer to those within that group endorsing the identified problem; all sleep problems were reported as occurring for 2 weeks or longer over the previous 12 months. All analyses include sociodemographic control variables. All variables through the first BPD assessment were simultaneously entered into one model and presented; the second two BPD indices where then included in the model in place of the first BPD index.

*p<.05,
**p<.01
Table 1
Multivariate Logistic Regression Analyses Predicting Sleep Problems (N=5,692)

Borderline Personality Disorder and Poor Sleep Related Consequences

Approximately 66% of those with BPD reported having at least one consequence over the last 12 months. BPD diagnosis (Table 2) demonstrated clear and consistent associations, beyond covariates, with sleepiness during the day (AOR=2.0, wald=51.2, p<.01), daytime fatigue due to poor sleep (AOR=2.1, wald=43.4, p<.01), and being to tired to complete daily activities (AOR=1.9, wald= 12.8, p<.01). BPD diagnosis was also a significant predictor of having all three poor sleep consequences (6% of those with BPD; wald=7.5, p<.01, AOR=2.1). As with chronic sleep problems, BPD diagnosis had AORs similar in magnitude as many Axis I disorders traditionally associated with sleep problems.

Table 2

Multivariate Logistic Regression Analyses Predicting Poor Sleep Consequences (N=5,692)

DSM Diagnosis Daytime Sleepiness Daytime Fatigue Too Tired to Complete Activities

% Yes AOR (95% CI) % Yes AOR (95% CI) % Yes AOR (95% CI)
Chronic Health Problem Present 46 2.5 (2.2–2.9)** 18 2.7 (2.1–3.4)** 5 2.0 (1.3–3.2)**
Major Depressive Disorder 66 2.3 (1.8–2.8)** 29 1.7 (1.3–2.2)** 9 1.3 (.8–2.1)
Dysthymia 66 .9 (.6–1.4) 36 1.2 (.8–1.8) 18 1.8 (1.1–3.1)*
Mania 57 1.3 (.9–1.8) 31 1.4 (1.0–2.1) 9 .9 (.5–1.8)
Alcohol Dependence 61 1.6 (.9–2.7) 33 2.5(1.4–4.7)** 7 1.5 (.5–4.7)
Any Drug Dependence 64 1.0 (.4–2.5) 28 .7 (.3–2.0) 3 .8 (.1–9.7)
Generalized Anxiety Disorder 65 1.7 (1.3–2.3)** 34 1.8 (1.4–2.4)** 11 1.1 (.7–1.7)
Panic Disorder 68 1.9 (1.4–2.5)** 31 1.1(.8–1.6) 14 1.3 (.7–1.7)
Posttraumatic Stress Disorder 68 2.0(1.5–2.6)** 35 1.7 (1.3–2.3)** 16 2.4 (1.6–3.6)**
Severe Suicidal Ideation 64 1.1 (.8–1.6) 34 1.4 (1.0–2.0) 16 2.1 (1.3–3.4)**
Any 2 Axis 1 Disorders 64 1.0 (.7–1.3) 30 1.0 (.7–1.4) 10 1.0 (.6–1.6)
Any 3+ Axis I Disorders 68 .7 (.5-.9)* 35 .7 (.5–1.1) 15 1.2 (.6–2.4)
5+ BPD Symptoms 65 2.0(1.7–2.4)** 32 2.0(1.6–2.5)** 10 1.9 (1.3–2.7)**

BPD Symptoms Continuous 1.2 (1.2–1.3)** 1.3 (1.2–1.4)** 1.2 (1.1–1.3)*
5+ BPD Symptoms Including Lifetime Suicide Attempt 64 2.0(1.7–2.4)** 31 2.2 (1.4–3.3)** 10 2.1 (1.0–4.3)*

Note: Percentages refer to those within that group endorsing the identified problem. All analyses include sociodemographic control variables. All variables through the first BPD assessment were simultaneously entered into one model and presented; the second two BPD indices where then included in the model in place of the first BPD index.

*p<.05,
**p<.01
Table 2
Multivariate Logistic Regression Analyses Predicting Poor Sleep Consequences (N=5,692)

Functional Impairment Associated with Poor Sleep and Borderline Personality Symptoms

BPD interacted with sleep problems (see Table 3) to indicate more problems with self-care (β=.08, t=3.0, p<.01), cognitive impairment (β =.17, t=7.1, p<.001), and social/emotional impairment (β =.19, t=7.9, p<.001), after accounting for key covariates. Figure 1 indicated worse impairments for those with more BPD symptoms who exhibited more sleep problems for these areas of functioning. No significant interactions were found for days out of role, role impairment, or decreased physical mobility.

Figure 1
Interaction between BPD Symptoms and Chronic Sleep Problems on Functional Impairment On the WHO-DAS.

Table 3

BPD and Chronic Sleep Problems Predicting Functional Impairment

Outcome Set F(1, 5611) r2Total t β
Self-care 7.6*** .04
 BPD Symptoms 1.3 .05
 Sleep Problems 5.2*** .08
 BPD* Sleep 3.0** .08

Cognitive 42.8*** .18
 BPD Symptoms 4.4*** .07
 Sleep Problems 8.2*** .11
 BPD* Sleep 7.1*** .17

Mobility 25.0*** .12
 BPD Symptoms 1.8 .03
 Sleep Problems 10.1*** .14
 BPD* Sleep .5 .01

Out of Role 41.4*** .18
 BPD Symptoms 3.6*** .05
 Sleep Problems 12.8*** .17
 BPD* Sleep 1.8 .04

Role Quality 21.3*** .11
 BPD Symptoms 3.4** .05
 Sleep Problems 7.0*** .10
 BPD* Sleep .4 .01

Social/Emotional Impairment 36.5*** .16
 BPD Symptoms 3.7*** .06
 Sleep Problems 7.1*** .10
 BPD* Sleep 7.9*** .19

Note: BPD=borderline personality disorder symptoms. All analyses include chronic health problems, sociodemographic, Axis I comorbidity, and suicidal ideation in the last year as control variables.

*<.05
**<.01
***<.001
Table 3
BPD and Chronic Sleep Problems Predicting Functional Impairment

Discussion

The current study found clear and consistent report of chronic sleep disturbances in those with BPD, even after accounting for key covariates, with many experiencing delayed SOL, increased WASO, and increased EMA most days for at least 2 weeks over the last year. Interestingly, the magnitudes of the AORs for BPD on chronic sleep problems was similar to other Axis I disorders often associated with sleep disturbance and with sleep-related criteria (i.e. MDD, GAD). BPD was also significantly associated, due to problems sleeping, with increased daytime sleepiness, fatigue, and feeling to tired to complete daytime activities. Potential reasons for the association between BPD and sleep problems, beyond Axis I contributions, may be that BPD psychopathology increases vulnerability to sleep problems because of emotion dysregulation or rumination (Selby & Joiner, 2009), or interpersonal conflicts during the day. Such experiences during the day may translate into difficulty falling asleep or frequent awakenings due to preoccupation with the problems, or increased arousal. They may also experience frequent nightmares on days with more emotion dysregulation (Selby et al., in press).

Findings also indicated that when those with BPD have sleep problems they might experience increased difficulties with emotion dysregulation, problems in social relationships, self-care, and memory problems. These interactions suggest that when both problems are present a positive feedback loop may arise where BPD symptoms may contribute poor sleep, and poor sleep aggravates symptoms of BPD. However, there may be differential effects of sleep problems on aggravating BPD symptoms, and some may be more affected than others. For example, despite the finding that many with BPD reported feeling too tired to complete daily activities due to poor sleep, BPD symptoms did not interact with sleep problems to predict number of days out of role or reduced role quality, nor did the interaction predict decreased physical mobility. However, those with elevated BPD symptoms and sleep problems reported more cognitive and social/emotional impairment. These findings indicated that when those with BPD are experiencing sleep problems, they may have increased problems with issues such as emotion dysregulation, problems in social relationships, and problems remembering things (potentially impacting techniques and skills learned in therapy). Furthermore, a significant interaction was also found for those with BPD and sleep problems in predicting decreased ability for self-care, and reduced self-care also likely worsens problems with emotional, social, and cognitive regulation. Future research should compare those with BPD who do and do not have chronic sleep problems to determine if there are significant group differences in intensity or duration of specific BPD symptoms, or if symptoms are exacerbated at a more general level.

Important strengths to consider with the current study including use of a large, non-treatment seeking sample, and controlling for medical, Axis I and sociodemographic variables associated with sleep problems. One primary limitation involved cross-sectional assessment of sleep problems over the last year (e.g., potential recall bias), and there was some temporal inconsistency between the indices measured over the course of the last year (sleep problems) and indices measure over the last 30 days (functional impairment). Longitudinal studies are needed to determine if BPD increases vulnerability to sleep problems, or if sleep problems simply aggravate BPD symptoms. Further, all indices in this study were self-report, and further studies with sleep diary monitoring and/or polysomnography studies may be needed to replicate and extend these findings, and ascertain more precise assessments of chronic sleep problems in BPD. Another limitation was that BPD was assessed with IPDE screening items, and findings should be replicated in samples where BPD is assessed with structured clinical interviews. Finally, other factors may be involved in the BPD association with poor sleep, such as being hyper-vigilant or worried about sleep problems, poor sleep environment, or sleep state misperceptions.

Clinically, monitoring of sleep problems and associated impairment may be important in therapy, and it may be beneficial to thoroughly cover facets of sleep hygiene as a routine part of therapy for those with BPD. Although some therapies for BPD integrate sleep hygiene to some extent (e.g., the emotion regulation module of DBT; Linehan, 1993), many therapies may overlook this issue. It may be the case that treating sleep will help reduce negative emotion in those with BPD, and such daytime improvements may further improve overall sleep quality. Finally, sleep hygiene alone may not be enough to treat some BPD patients with chronic sleep problems, and some patients may also benefit from additional Cognitive Behavior Therapy for Insomnia (CBT-I; Edinger & Means, 2005).

Acknowledgments

Support for this project was provided, in part, by the Brain and Behavior Research Foundation and the Families for Borderline Personality Disorder Research with an early investigator grant (PI: Selby). The National Comorbidity Survey Replication was supported by NIMH (U01-MH60220) with supplemental support from NIDA, the Substance Abuse and Mental Health Services Administration (SAMHSA), the Robert Wood Foundation (Grant 044708), and the John W. Alden Trust. The views and opinions expressed in this report are those of the authors and should not be construed to represent the views of any sponsoring organizations, agencies, or U.S. Government. A complete list of NCS publications and the full text of all NCS-R instruments can be found at http:www.hcp.med.harvard.edu/ncs. The NCS-R is carried out in conjunction with the World Health Organization World Mental Health (WMH) Survey Initiative.

Footnotes

1Diagnostic efficiency analyses of the IPDE BPD screening items have indicated adequate sensitivity (all >.60), specificity (all >.66), negative predictive power (all >.95), and total predictive value (all >.68); however, all were somewhat low on positive predictive power (range .24–.53), indicating that endorsing only one symptom was not a strong indicator for the presence of a BPD diagnosis and supporting the notion that multiple items needed to be endorsed for a diagnosis (Selby, 2013).

2The main effects of BPD diagnosis on the six indices of impairment measured by the WHO-DAS have previously been reported on, with significant effects found for BPD diagnosis on mobility, cognition, days out of role, diminished role quality, and problems with social and emotional functioning (Lenzenweger et al., 2007). However, the current study builds on these findings by examining the interaction between a continuous predictor of BPD symptoms and the number of chronic sleep problems assessed, and in this study the WHO-DAS scales were left as continuous variables rather than dichotomized as in the previous study.

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Source: Chronic Sleep Disturbances and Borderline Personality Disorder Symptoms

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