The associations of earlier trauma exposures and history of mental disorders with PTSD after subsequent traumas.

Although earlier trauma exposure is known to predict posttraumatic stress disorder (PTSD) after subsequent traumas, it is unclear whether this association is limited to cases where the earlier trauma led to PTSD. Resolution of this uncertainty has important implications for research on pretrauma vulnerability to PTSD. We examined this issue in the World Health Organization (WHO) World Mental Health (WMH) Surveys with 34 676 respondents who reported lifetime trauma exposure. One lifetime trauma was selected randomly for each respondent. DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, 4th Edition) PTSD due to that trauma was assessed. We reported in a previous paper that four earlier traumas involving interpersonal violence significantly predicted PTSD after subsequent random traumas (odds ratio (OR)=1.3-2.5). We also assessed 14 lifetime DSM-IV mood, anxiety, disruptive behavior and substance disorders before random traumas. We show in the current report that only prior anxiety disorders significantly predicted PTSD in a multivariate model (OR=1.5-4.3) and that these disorders interacted significantly with three of the earlier traumas (witnessing atrocities, physical violence victimization and rape). History of witnessing atrocities significantly predicted PTSD after subsequent random traumas only among respondents with prior PTSD (OR=5.6). Histories of physical violence victimization (OR=1.5) and rape after age 17 years (OR=17.6) significantly predicted only among respondents with no history of prior anxiety disorders. Although only preliminary due to reliance on retrospective reports, these results suggest that history of anxiety disorders and history of a limited number of earlier traumas might usefully be targeted in future prospective studies as distinct foci of research on individual differences in vulnerability to PTSD after subsequent traumas.

Post-traumatic stress disorder associated with natural and human-made disasters in the World Mental Health Surveys.

BACKGROUND: Research on post-traumatic stress disorder (PTSD) following natural and human-made disasters has been undertaken for more than three decades. Although PTSD prevalence estimates vary widely, most are in the 20-40% range in disaster-focused studies but considerably lower (3-5%) in the few general population epidemiological surveys that evaluated disaster-related PTSD as part of a broader clinical assessment. The World Mental Health (WMH) Surveys provide an opportunity to examine disaster-related PTSD in representative general population surveys across a much wider range of sites than in previous studies. METHOD: Although disaster-related PTSD was evaluated in 18 WMH surveys, only six in high-income countries had enough respondents for a risk factor analysis. Predictors considered were socio-demographics, disaster characteristics, and pre-disaster vulnerability factors (childhood family adversities, prior traumatic experiences, and prior mental disorders). RESULTS: Disaster-related PTSD prevalence was 0.0-3.8% among adult (ages 18+) WMH respondents and was significantly related to high education, serious injury or death of someone close, forced displacement from home, and pre-existing vulnerabilities (prior childhood family adversities, other traumas, and mental disorders). Of PTSD cases 44.5% were among the 5% of respondents classified by the model as having highest PTSD risk. CONCLUSION: Disaster-related PTSD is uncommon in high-income WMH countries. Risk factors are consistent with prior research: severity of exposure, history of prior stress exposure, and pre-existing mental disorders. The high concentration of PTSD among respondents with high predicted risk in our model supports the focus of screening assessments that identify disaster survivors most in need of preventive interventions.

Posttraumatic stress disorder in the World Mental Health Surveys.

BACKGROUND: Traumatic events are common globally; however, comprehensive population-based cross-national data on the epidemiology of posttraumatic stress disorder (PTSD), the paradigmatic trauma-related mental disorder, are lacking. METHODS: Data were analyzed from 26 population surveys in the World Health Organization World Mental Health Surveys. A total of 71 083 respondents ages 18+ participated. The Composite International Diagnostic Interview assessed exposure to traumatic events as well as 30-day, 12-month, and lifetime PTSD. Respondents were also assessed for treatment in the 12 months preceding the survey. Age of onset distributions were examined by country income level. Associations of PTSD were examined with country income, world region, and respondent demographics. RESULTS: The cross-national lifetime prevalence of PTSD was 3.9% in the total sample and 5.6% among the trauma exposed. Half of respondents with PTSD reported persistent symptoms. Treatment seeking in high-income countries (53.5%) was roughly double that in low-lower middle income (22.8%) and upper-middle income (28.7%) countries. Social disadvantage, including younger age, female sex, being unmarried, being less educated, having lower household income, and being unemployed, was associated with increased risk of lifetime PTSD among the trauma exposed. CONCLUSIONS: PTSD is prevalent cross-nationally, with half of all global cases being persistent. Only half of those with severe PTSD report receiving any treatment and only a minority receive specialty mental health care. Striking disparities in PTSD treatment exist by country income level. Increasing access to effective treatment, especially in low- and middle-income countries, remains critical for reducing the population burden of PTSD.

The epidemiology of traumatic event exposure worldwide: results from the World Mental Health Survey Consortium.

BACKGROUND: Considerable research has documented that exposure to traumatic events has negative effects on physical and mental health. Much less research has examined the predictors of traumatic event exposure. Increased understanding of risk factors for exposure to traumatic events could be of considerable value in targeting preventive interventions and anticipating service needs. METHOD: General population surveys in 24 countries with a combined sample of 68 894 adult respondents across six continents assessed exposure to 29 traumatic event types. Differences in prevalence were examined with cross-tabulations. Exploratory factor analysis was conducted to determine whether traumatic event types clustered into interpretable factors. Survival analysis was carried out to examine associations of sociodemographic characteristics and prior traumatic events with subsequent exposure. RESULTS: Over 70% of respondents reported a traumatic event; 30.5% were exposed to four or more. Five types - witnessing death or serious injury, the unexpected death of a loved one, being mugged, being in a life-threatening automobile accident, and experiencing a life-threatening illness or injury - accounted for over half of all exposures. Exposure varied by country, sociodemographics and history of prior traumatic events. Being married was the most consistent protective factor. Exposure to interpersonal violence had the strongest associations with subsequent traumatic events. CONCLUSIONS: Given the near ubiquity of exposure, limited resources may best be dedicated to those that are more likely to be further exposed such as victims of interpersonal violence. Identifying mechanisms that account for the associations of prior interpersonal violence with subsequent trauma is critical to develop interventions to prevent revictimization.

THE PREVALENCE OF POST-TRAUMATIC STRESS DISORDER AMONG SEXUALLY ABUSED CHILDREN AT KENYATTA NATIONAL HOSPITAL IN NAIROBI, KENYA.

BACKGROUND: Post-Traumatic Stress Disorder (PTSD) develops following some stressful events. There has been increasing recognition that children who have been exposed to traumatic events like child sexual abuse can develop post-traumatic stress disorder just like adults. OBJECTIVE: To determine prevalence of PTSD in sexually abused children seen at the Gender Based Violence Recovery Centre at Kenyatta National Hospital. DESIGN: A cross sectional descriptive study. SETTING: Gender Based Violence Recovery Centre-Kenyatta National Hospital. Subjects One hundred and forty-nine (n =149) sexually abused children were recruited in the study. RESULTS: The mean age 14.8% boys and 85.2% girls was 13.2 years (SD 4.2) the age at which sexual abuse most frequently (55%) occurred between 15-17 years. Sixty three percent of children reported that the perpetrator was known to them, and 76.5% of perpetrators used verbal or physical force during sexual assault. The prevalence of PTSD among the sexually abused children was 49%. PTSD was significantly associated with shorter duration of sexual abuse, i.e., daily which is 67% as compared to months which is 4.7% (p = 0.005), Greater severity of injuries sustained during assault (p = 0.023), parent's marital status those whose parents were married or cohabiting 40% were affected as compared to 52% whose parents were separated or divorced (p = 0.003) and the family's way of sorting out their disagreements was also significantly associated with PTSD. Parents who sorted their disagreement by talking was at 31% while those who sorted their disagreement by fighting was at 67% (p < 0.001). CONCLUSIONS: This study highlights the high prevalence of PTSD among sexually abused children presenting at Kenyatta National Hospital Nairobi-Kenya. PTSD is associated with the degree of physical or verbal abuse during sexual abuse, injuries during assault, and parent-child relationships. These findings are important in formulation of appropriate prevention and care interventions to be implemented by families and other stakeholders.

Emergency mental health and psychosocial support for survivors of post-election violence in Eldoret, Kenya.

OBJECTIVE: To describe the design and delivery of emergency mental health and psychosocial support services for the survivors of Post-Election Violence in Eldoret, Kenya. DESIGN: A longitudinal intervention. SETTING: The North Rift Valley region in Western Kenya. SUBJECTS: A total of 80,772 survivors received mental health and psychosocial support services. RESULTS: Counselling and Psychological First Aid services were successfully offered to most survivors in the North Rift Valley region. Common issues addressed included looking for lost relatives, sudden traumatic death of relatives, anger at their attackers, feelings of revenge, fear of seeing the corpse, loss of all property and source of livelihood and denial. CONCLUSION: It is possible and necessary to integrate a mental health and psychosocial support intervention into a disaster response even in limited resource settings. Further studies are recommended to evaluate the effectiveness of this approach.

Self-reported attention deficit and hyperactivity disorder symptoms among university students in Eldoret, Kenya.

OBJECTIVE: To determine the prevalence of self-reported attention deficit and hyperactivity disorder (ADHD) symptoms among university students in Eldoret, Kenya. DESIGN: A cross-sectional descriptive study of all students who gave consent to participate in the study. SETTING: Moi University's Town Campus, comprising the Schools of Medicine, Dentistry and Public Health. SUBJECTS: Four hundred and fifty eight undergraduate students, with a mean age of 23.7 years (17-46, S.D. 4.1), of whom 236 (51.5%) were male. MAIN OUTCOME MEASURES: Presence of ADHD symptoms as measured by the adult ADHD self-report scale (ASRS versus 1.1). RESULTS: The prevalence rate of self-reported ADHD symptoms was 21.8%. This was significantly associated with belonging to a younger age-group (17-20 years) compared to the older age-groups (p<0.05). The prevalence was higher among females (25.2%) than among males (18.6%), but this was not statistically significant. There was no significant association between a positive ASRS screen and course of study. Using a modification of ASRS full symptom checklist to approximate a DSM IV TR ADHD diagnosis yielded a prevalence of ADHD symptoms of 9.2% in this cohort. CONCLUSION: The prevalence rate of ADHD symptoms among university students in Eldoret, Kenya is significantly higher than that reported in other studies. Further studies are needed to generate more information about this condition in the low-income countries, especially in college and university populations.

Neuroleptic induced tardive dyskinesia in a patient on treatment for schizophrenia: case report.

In this case, a thirty six year old patient on treatment for schizophrenia is described with severe tardive dyskinesia. The most likely cause is long term treatment with two highly potent typical antipsychotic medications. The patient was initially treated with Benzhexol, an anticholinergic agent with the potential to induce or aggravate the disorder. This case discusses the common presentation and management of neuroleptic induced tardive dyskinesia.

Post traumatic stress disorder among Mau Mau concentration camp survivors in Kenya.

BACKGROUND: A decade before Kenya's independence in 1963 thousands of 'Mau Mau' fighters were arrested and incarcerated in concentration camps where many underwent torture and inhuman treatment. No studies have been done to establish the presence of post traumatic stress disorder (PTSD) and other psychiatric morbidity among the survivors of those concentration camps. OBJECTIVES: To establish the prevalence of PTSD and other psychiatric morbidity and associated factors among the Mau Mau Concentration Camp survivors. DESIGN: A cross-sectional, descriptive study of all consecutive concentration camp survivors included in the study. SETTING: Mau Mau War Veterans' Association (MMWVA) headquarters at Mwea House, Nairobi, Kenya Human Rights Commission headquarters in Nairobi, Tumaini House (Venue of MMWVA elections, 2005) and the MMWVA branch office in Kajiado District, Rift Valley Province, Kenya. SUBJECTS: One hundred and eighty one Mau Mau Concentration Camp Survivors who gave consent to participate in the study. MAIN OUTCOME MEASURES: Lifetime and Current PTSD, IES-R score and other Psychiatric Morbidity as measured using the SCID and the IES-R. RESULTS: A DSM-IV-TR diagnosis of current PTSD was made in 65.7% of the survivors. Current PTSD was associated with higher IES-R scores and older age, lower income, non-Catholic religion, larger household size, older age at incarceration, greater length of incarceration, incarceration in two or more camps, experiencing other traumatic events, family history of mental illness and having other psychiatric illness. CONCLUSIONS: Similar to other former Prisoners of War (POWs) elsewhere, these survivors suffer high PTSD prevalence rates and a special veterans' service is recommended to address this problem and its associated factors among these and other veterans in Kenya.

Association between traumatic events and post-traumatic stress disorder: results from the ESEMeD-Spain study.

BACKGROUND: The relative importance of traumatic events (TEs) in accounting for the social burden of post-traumatic stress disorder (PTSD) could vary according to cross-cultural factors. In that sense, no such studies have yet been conducted in the Spanish general population. The present study aims to determine the epidemiology of trauma and PTSD in a Spanish community sample using the randomly selected TEs method. METHODS: The European Study of the Epidemiology of Mental Disorders (ESEMeD)-Spain is a cross-sectional household survey of a representative sample of adult population. Lifetime prevalence of self-reported TEs and lifetime and 12-month prevalence of PTSD were evaluated using the World Health Organization (WHO) Composite International Diagnostic Interview. Reports of PTSD associated with randomly selected TEs were weighted by the individual-level probabilities of TE selection to generate estimates of population-level PTSD risk associated with each TE. RESULTS: Road accident was the most commonly self-reported TE (14.1%). Sexual assault had the highest conditional risk of PTSD (16.5%). The TEs that contributed most to societal PTSD burden were unexpected death of a loved one (36.4% of all cases) and sexual assault (17.2%). Being female and having a low educational level were associated with low risk of overall TE exposure and being previously married was related to higher risk. Being female was related to high risk of PTSD after experiencing a TE. CONCLUSIONS: Having an accident is commonly reported among Spanish adults, but two TE are responsible for the highest burden associated with PTSD: the unexpected death of someone close and sexual assault. These results can help designing public health interventions to reduce the societal PTSD burden.

Short-term diagnostic stability among re-admitted psychiatric in-patients in Eldoret, Kenya.

OBJECTIVE: To determine the prospective and retrospective consistency of diagnoses among readmitted psychiatric in-patients at the Moi Teaching and Referral Hospital in Eldoret, Kenya. METHOD: Admission and discharge diagnoses among a consecutive sample of 114 psychiatric in-patients readmitted at the Moi Teaching and Referral Hospital between August and December 2009 were compared. RESULTS: The commonest diagnoses at admission were schizophrenia spectrum disorders (47.4%) and bipolar spectrum disorders (30.7%). Overall diagnostic stability as measured by prospective consistency in this study was 72.8%.The most stable diagnostic category was Major Depressive Disorder (100% prospective and retrospective consistency), followed by Bipolar Disorders (91.4% prospective consistency, 69.6% retrospective consistency) and Substance-related disorders (87.5% prospective consistency, 50% retrospective consistency). Schizophrenia-spectrum disorders had a prospective consistency of 75.9% and a retrospective consistency of 87.2%. 'Other Psychotic Disorders' (acute psychotic episode and psychotic disorder not otherwise specified) had the lowest diagnostic stability, with both prospective and retrospective consistency being 0%. CONCLUSION: Mood disorders and substance-related disorders have the highest diagnostic stability among readmitted psychiatric inpatients in a low-income country.

Attention deficit hyperactivity disorder symptom self-report among medical students in Eldoret, Kenya.

BACKGROUND: To determine the prevalence of self-reported attention deficit hyperactivity disorder (ADHD) symptoms among medical students in Eldoret, Kenya. METHODS: A cross-sectional descriptive study of all medical students who gave consent to participate in the study. Undertaken at Moi University's School of Medicine in Eldoret, Kenya. Comprising two hundred and fifty three (253) undergraduate medical students, with a mean age of 23.7 years (19-42, s.d. 4.1), of whom 51% were female. Measuring ADHD symptomatology using the Adult ADHD Self-Report Scale (ASRS v1.1). RESULTS: The prevalence rate of self-reported ADHD symptoms using the ASRS screener was 23.7%. This was significantly associated with being in the age-group 17-20 years compared (p<0.05). The prevalence rate was higher among females (25.6%) than among males (21.8%), but this difference was not statistically significant. Preclinical students had a higher prevalence rate of ADHD symptoms (28.7%) compared to clinical students (19.6%), but this was also not statistically significant. Using a modification of the ASRS full symptom checklist to approximate a Diagnostic and Statistical Manual of Mental Disorders, 4th edition, text revision (DSM-IV-TR) ADHD diagnosis yielded a 'possible ADHD' prevalence rate of 8.7%. Of these, the inattentive type was the most common (40.9%). CONCLUSION: The prevalence rate of self-reported ADHD symptoms among medical students in Eldoret is very high and possibly interferes with the students' social and academic functioning. Further studies are suggested to generate information on the real ADHD prevalence in the general population and in special populations such as schools and colleges.