Suicides and serious suicide attempts: two populations or one?

BACKGROUND: Few studies have examined the extent to which populations of suicides and attempted suicides are similar, or different. This paper compares suicides and serious suicide attempts in terms of known risk factors for suicidal behaviour. METHODS: Using case-control methodology, risk factors for suicidal behaviour were examined in 202 individuals who died by suicide, 275 individuals who made medically serious suicide attempts and 984 randomly selected control subjects. Based on data from significant others, measures used spanned sociodemographic factors, childhood experiences, psychiatric morbidity and psychiatric history, exposure to recent stressful life events and social interaction. RESULTS: Multiple logistic regression identified the following risk factors that were common to suicide and serious suicide attempts: current mood disorder; previous suicide attempts; prior outpatient psychiatric treatment; admission to psychiatric hospital within the previous year; low income; a lack of formal educational qualifications; exposure to recent stressful interpersonal, legal and work-related life events. Suicides and suicide attempts were distinguished in the following ways: suicides were more likely to be male (OR = 1.9, 95% CI 1.1, 3.2); older (OR = 1.03, 95% CI 1.02, 1.04); and to have a current diagnosis of non-affective psychosis (OR = 8.5, 95% CI 2.0, 35.9). Suicide attempts were more likely than suicides to have a current diagnosis of anxiety disorder (OR = 3.5, 95% CI 1.6, 7.8) and to be socially isolated (OR = 2.0, 95% CI 1.2, 3.5). These findings were confirmed by discriminant function analysis, which identified two functions that described the three subject groups: the first function discriminated the two suicide groups from control subjects on a dimension corresponding to risk factors for suicide; the second function discriminated suicide from suicide attempt subjects on a series of factors including gender, non-affective psychosis and anxiety disorder. CONCLUSIONS: Suicides and medically serious suicide attempts are two overlapping populations that share common psychiatric diagnostic and history features, but are distinguished by gender and patterning of psychiatric disorder.     

Suicide in current psychiatric in-patients: a case-control study The National Confidential Inquiry into Suicide and Homicide

BACKGROUND: Few controlled studies have investigated factors associated with suicide in current in-patients. We aimed to identify psychosocial, behavioural and clinical risk factors, including variations in care, for in-patient suicide. METHOD: We conducted a national population-based case-control study of people who died by suicide between 1 April 1999 and 31 December 2000 while in psychiatric in-patient care in England. Cases were 222 adult mental health in-patients who died by suicide matched on date of death with 222 living controls. RESULTS: Nearly a quarter of suicides took place within the first week of admission; most of these died on the ward or after absconding. After the first week, however, most suicides occurred away from the ward, the majority of patients having left the ward with staff agreement. Previous deliberate self-harm, recent adverse life events, symptoms of mental illness at last contact with staff and a co-morbid psychiatric disorder were associated with increased risk for suicide. Being off the ward without staff agreement was a particularly strong predictor. Those patients who were detained for compulsory treatment were less likely to die by suicide. Independent predictors of in-patient suicide were male sex, a primary diagnosis of affective disorder and a history of self-harm. Being unemployed or on long-term sick leave appeared to be independently protective. CONCLUSION: Prevention of in-patient suicide should emphasize adequate treatment of affective disorder, vigilance in the first week of admission and regular risk assessments during recovery and prior to granting leave. Use of compulsory treatment may reduce risk.     

Suicide in recently admitted psychiatric in-patients: A case-control study

BackgroundAround a quarter of in-patient suicides occur within the first week of admission to psychiatric in-patient care. Little is known on the factors associated with suicide during this critical time. We aimed to identify risk factors for suicide among in-patients within the first week of admission.MethodsA national population-based case-control study of 107 current psychiatric in-patients in England who died by suicide within a week of admission, matched on admission date with 107 living controls.ResultsForty-two (40%) suicide cases died within the first 3 day of admission. A fifth of all suicides were on authorised leave at the time of death, but 34% were off the ward without staff agreement compared to only 1% of controls. Independent risk factors for suicide included previous self-harm, recent adverse life events, and a short (<12 months) duration of illness.LimitationsThis is a retrospective study, using clinical data mainly collected from case records. Clinicians were not blind to case/control status.ConclusionsThe first few days of admission should be recognised as the period of highest risk. Careful risk evaluation is needed at this time, particularly in those with recent illness onset or previous suicide attempts. Knowledge of life events experienced before admission should be incorporated into risk assessments. Improvements to the ward environment to lessen the distress of an admission may be an important preventative measure. Protocols may require adapting to improve the safety of those on agreed leave, and prevent absconding through increased vigilance and closer observation of ward exits.     

Risk factors for suicide in China's youth: a case-control study

BACKGROUND: Suicide is the most common cause of death among youth in China. METHOD: A case-control psychological autopsy study in 23 geographically representative disease surveillance points around China collected information from family members and close associates of 114 persons aged 15-24 years who died by suicide (cases) and 91 who died of other injuries (controls). RESULTS: Among the 114 suicides 61% were female, 88% lived in rural villages, 70% died by ingesting pesticides (most commonly stored in the home), 24% previously attempted suicide, and 45% met criteria of a mental illness at the time of death. Multivariate logistic regression identified several independent risk factors: severe life events within 2 days before death (OR 31.8, 95% CI 2.6-390.6), presence of any depressive symptoms within 2 weeks of death (OR 21.1, 95% CI 4.6-97.2), low quality of life in the month before death (OR 9.7, 95% CI 2.8-34.1), and acute stress at time of death (moderate: OR 3.1, 95% CI 0.8-11.9; high: OR 9.1, 95% CI 1.2-66.8). A significant interaction between mental illness at time of death and gender indicated that diagnosis was an important predictor of suicide in males (OR 14.0, 95% CI 2.6-76.5) but not in females (OR 0.3, 95% CI 0.0-3.6). Prior suicide attempt was related to suicide in the univariate analysis (OR 57.5) but could not be included in the multivariate model because no controls had made prior attempts. CONCLUSIONS: Suicide prevention efforts for youth in China must focus on restricting access to pesticides, early recognition and management of depressive symptoms and mental illnesses, improving resiliency, and enhancing quality of life.     

Suicide and occupation: the impact of socio-economic, demographic and psychiatric differences

BACKGROUND: To explore the risk of suicide associated with occupation while evaluating the impact of socio-economic, demographic and psychiatric differences. METHOD: A nested case-control study with 3195 suicides and 63 900 matched controls. Information on causes of death, occupation, psychiatric admission, marital status and socio-economic factors was obtained from routine registers. RESULTS: Across the 55 occupations investigated, the risk of suicide ranged from 2.73 [95% confidence interval (CI) 1.77-4.22] among doctors to 0.44 (95% CI 0.27-0.72) among architects and engineers compared with primary school teachers. With the exception of doctors and nurses, most of the excess risk of suicide associated with particular occupations is explained by the social and economic characteristics of people in those occupations. Much, but not all, of the excess risk in doctors and nurses is due to their increased use of self-poisoning, a method for which they have the knowledge to use effectively. Occupation has little association with suicide among people who suffer from a psychiatric illness, except for doctors, where the excess risk is 3.62 (p=0.007). CONCLUSIONS: Most of the considerable variation in suicide risk across occupations is explained by socio-economic factors, except for doctors and nurses. Apart from in doctors, the risk of suicide has little association with occupation among people who suffer from a psychiatric illness. Restriction of access to lethal means is an important strategy in suicide prevention.     

Current psychiatric morbidity, aggression/impulsivity, and personality dimensions in child and adolescent suicide: a case-control study

OBJECTIVE: The present study was designed to evaluate psychiatric risk factors for child and adolescent suicide, and to determine the association between impulsive-aggressive and other personality traits, and suicide completion in this population. METHOD: Psychiatric diagnoses, impulsive-aggressive and other personality traits were assessed in 55 child and adolescent suicide victims and 55 community controls using semi-structured proxy-based interviews and questionnaires. RESULTS: The most significant psychiatric risk factors associated with child and adolescent suicide were depressive disorders (OR=48.414, 95% CI 6.247-375.185), substance/alcohol abuse disorder (OR=5.365, 95% CI 1.434-20.076), and disruptive disorders (OR=13.643, 95% CI 2.292-23.16). Additionally, suicide victims showed higher scores on lifetime aggression/impulsivity, and harm avoidance. However, after logistic regression, the only independent significant predictors of suicide in this age group were the presence of depressive disorders (Adjusted OR (AOR)=39.652, 95% CI 4.501-349.345), substance/alcohol abuse disorders (AOR=7.325, 95% CI 1.127-47.62), and disruptive disorders (AOR=6.464, 95% CI 1.422-29.38). LIMITATIONS: Relatively small sample size, and cross-sectional design. CONCLUSIONS: Our findings confirm the existence of a particular clinical profile of children and adolescents at high risk for suicide. Additionally, our results reinforce the need for improved understanding of the interrelationships between stressors, depression, substance/alcohol abuse disorders, disruptive disorders and personality traits/dimensions in youth suicidal behavior.     

Suicide in female nurses in England and Wales

BACKGROUND: Female nurses appear to have an increased risk of suicide but the reasons are unknown. METHOD: We have concluded a study of nurse suicides (N = 106) in England and Wales, including a psychological autopsy study (N = 42) and case-control comparison with living nurses (N = 84). RESULTS: Nearly three-quarters of the nurse suicides had previous contact with psychiatric services and almost half had been psychiatric in-patients in the past. There were particularly marked differences between the cases and controls for current psychiatric disorder (90.5% v. 7.1%, OR = 68.5), personality disorder (38.1% v. 12%, OR = 32), and history of deliberate self-harm (71.4% v. 2.4%, OR = 58.5). Family background and social factors (especially concerning interpersonal relationships) also distinguished the two groups. Smoking and serious alcohol abuse were much more frequent in the suicides. There was some indication that while many of the suicides were in contact with psychiatric services, care may not have been optimal in some cases. CONCLUSIONS: The most important strategies for suicide prevention in nurses are in prevention, detection and management of psychiatric disorders. In assessing suicide risk a history of DSH and the presence of comorbid psychiatric and personality disorders are particularly important.     

Suicide at 50 years of age and older: perceived physical illness, family discord and financial strain

BACKGROUND: Mental disorders amplify suicide risk across the lifecourse, but most people with mental disorder do not take their own lives. Few controlled studies have examined the contribution of stressors to suicide risk. METHOD: A case-control design was used to compare 86 suicides and 86 controls aged 50 years and older, matched on age, gender, race and county of residence. Structured interviews were conducted with proxy respondents for suicides and controls. RESULTS: Perceived physical illness, family discord and employment change amplified suicide risk after controlling for sociodemographic covariates and mental disorders that developed > or = 1 year prior to death/interview. Only the effect of physical illness (OR 6.24, 95% CI 1.28-51.284) persisted after controlling for all active mental disorders. CONCLUSIONS: Interventions to decrease the likelihood of financial stress and to help families manage discord and severe physical illness may effectively reduce suicides among middle-aged and older adults.     

广州市精神病医院50年住院病人自杀危险因素的病例对照研究

目的:识别精神分裂症住院病人自杀的潜在危险因素,为探讨如何进一步预防住院精神病人的自杀提供依据。方法:对广州市精神病医院1956-2005年住院精神病人自杀进行回顾性分析,并对其中的精神分裂症病人按同性别、同诊断、相同或相近年龄、住院进行1:1匹配的病例对照研究。结果:共有77例住院精神病人发生自杀,自杀发生率为133.1/10万(95%CI103.4-162.85/10万)。多数自杀者为精神分裂症病人(64例,占83.1%),多数自杀者采取自缢的方式(59例,占76.6%),多数病人的自杀行为发生在病房内(52例,占67.5%);自杀组的住院次数明显高于对照组(2.13±1.89/1.23±0.75,P=0.001);自杀组本次住院前1月及住院期间的自杀未遂次数明显高于对照组(0.39±0.85/0.09±0.39,0.59±1.52/0.00±0.00,P=0.017,0.003)。自杀组有罪恶观念、心境抑郁者多于对照组(18.8%/3.1%,28.1%/6.3%,P=0.006,0.004);住院精神分裂症病人的罪恶观念、心境抑郁、本次住院前1月有自杀意念和自杀未遂是其自杀行为发生的危险因素(β=2.407、1.566、1.201、1.643)。结论:该院50年住院病人的自杀发生率与国外近似,精神分裂症病人自杀的危险因素是罪恶观念、心境抑郁、住院前1月自杀意念和自杀未遂。     

Life events and psychosocial factors in elderly suicides--a case-control study.

BACKGROUND: Stressful life events, such as family conflicts, separation, bereavement, somatic illness and financial problems are common antecedents of suicide. Studies on suicide among younger persons dominate the literature, despite the fact that a large proportion of suicides occur among elderly persons. METHODS: The occurrence of stressful life events was investigated among elderly suicide cases and population controls. The study was conducted in the southwestern part of Sweden and included 85 persons (46 males and 39 females) 65 years and above who had committed suicide from January 1994 to May 1996. Population controls (84 males and 69 females) were randomly selected. Interviews were carried out with the controls and with informants for the suicide cases. Questions on sociodemographic background, mental and somatic health status, and life events (0-6, 7-12 and 13-24 months preceding suicide/interview) were included in the interviews. RESULTS: Somatic illness, family discord and financial trouble were significant risk factors during all three time periods. Other risk factors were mental disorder, lower education, feelings of loneliness and previous suicide in the family. Factors associated with a decreased risk included active participation in organizations and having a hobby. Variables that remained in the multivariate logistic regression model were mental disorder (men, odds ratio (OR) = 62.4, 95% CI 17.9-217.5; women, OR = 55.9, 95% CI 14.1-222.3) and family discord (men, OR = 10.0. 95% CI 1.7-59.8; women, OR = 9.2, 95% CI 1.9-44.8). CONCLUSIONS: Mental disorder and family discord were the two major risk factors for suicide among elderly men and women.     

Suicide in depressive disorders: a retrospective case-control study of 127 suicides

BACKGROUND: Depressive disorders are associated with a significant risk of suicide. Inpatient status and recent discharge from hospital have been identified as times of high risk of suicide within the course of illness. METHOD: A matched retrospective case control study of 127 patients with depression requiring inpatient care who died by suicide as inpatients or in the 12 months following discharge from hospital. Single and multivariable conditional logistic regression identified independent risk and protective factors for suicide. RESULTS: A history of deliberate self harm is a significant risk factor for suicide in patients with depression (OR 6.96; 95% CI 3.41-14.19), as is living alone (OR 2.11; 95% CI 1.15-3.87) and paid employment (OR 2.80; 95% CI 1.48-5.32). Admission to hospital during social crisis is associated with a reduction in suicide risk (OR 0.43; 95% CI 0.24-0.75). LIMITATIONS: This is a retrospective case-control study, using clinical data not originally collected for research purposes. CONCLUSIONS: General population risk factors for suicide are less predictive of suicide in patients with depression requiring inpatient treatment. Clinicians need to be aware of factors which increase or reduce the risk of suicide in this group.     

北京地区40家综合医院住院病人自杀意念和自杀未遂的调查

目的:了解北京地区综合医院住院病人自杀意念、自杀未遂的出现率及其危险因素。方法:采用自制抑郁筛选量表在随机抽取的北京40家各级综合医院中调查了2914例年龄>15岁的住院病人,了解他们自杀意念、自杀未遂发生情况及相关因素,并通过多因素logistic模型发现其危险因素。结果:2914例患者中,187人(6·42%;95%CI为5·58%~7·64%)有过自杀意念,其危险因素排列为:近一年感到绝望的频率高(OR=9·2,95%CI为6·5~12·9)、亲属有过自杀行为(4·3,2·3~8·3)、调查当时有重性抑郁发作(2·7,1·7~4·3)、熟人有过自杀行为(2·0,1·3~2·9)、年龄<55岁(1·7,1·2~2·3)、女性(1·5,1·1~2·1)。2914例患者中,25人(0·86%;95%CI为0·56%~1·26%)有过自杀未遂,其危险因素排列为:目前有重性抑郁发作(OR=5·6,95%CI为2·1~15·1)、亲属有过自杀行为(5·1,1·4~18·9)、近一年感到绝望频率高(4·7,1·9~11·9)、年龄<55岁(3·6,1·4~9·3)、女性(3·6,1·4~9·3)。结论:伴有抑郁症状的综合医院住院病人应视为自杀高危人群,需投入更多的关注。根据其自杀意念、自杀未遂的危险因素,应在综合医院制定和执行有针对性的自杀预防计划。     

Hospital characteristics associated with post-discharge suicide of severely depressed patients

PURPOSE: To explore risk factors, such as characteristics of psychiatrist, patient and hospital at index hospitalization, associated with depressed patients who committed suicide within 3 months of discharge using a case-control design. METHODS: By linking the Taiwanese nationwide mortality database and the National Health Insurance dataset, all hospitalized patients with major depression who committed suicide within a 90-day period post-discharge during the years 2002-2004 were selected as a study cohort (n=85). We randomly selected 425 cases (five for every case in the study cohort) that were matched with the study cohort in terms of age, gender and date of discharge as a control cohort. Cox proportional hazard regression was carried out to compute the adjusted 90-day survival rate after adjusting for other factors. RESULTS: The majority of suicide occurred 30 days after discharge from hospitals, with a mean of 29.9 days. The adjusted hazard for committing suicide after hospital discharge for patients who left on their own initiative was 2.85 times (95% CI=1.387-5.856, p=0.004) greater than for those who were discharged with doctors' approval. Furthermore, the adjusted hazard for patients who were discharged from medical centers was higher than for patients discharged from regional hospitals, by a multiple of 3.38 (95% CI=1.421-8.055, p=0.006). LIMITATIONS: Some patient-specific predictors of post-discharge suicide, such as suicidal ideation prior to admission, recent life events and social relationships with close relatives were not available. CONCLUSION: We conclude that, in addition to patient characteristics, hospital characteristics also constitute important risk factors for suicide within 90 days of discharge for depressed patients.     

Sleep and adolescent suicidal behavior

STUDY OBJECTIVES: Suicide risk begins to increase during adolescence. Adolescents do not get enough sleep and are also at risk for many sleep disturbances. This study examined the association between sleep patterns and sleep problems and adolescent suicidal behavior. DESIGN AND SETTING: A questionnaire survey of adolescents attending school was conducted in one prefecture of Shandong Province, People's Republic of China. PARTICIPANTS: A total of 1,362 adolescents attending school (mean age 14.6 years, 60% males) participated in the survey. MEASUREMENTS: Respondents completed a self-administered questionnaire that asked about sleep patterns, sleep problems, suicidal behavior, depressive symptoms, and demographic characteristics of the family and adolescent. RESULTS: Overall, 19.3% of the sample reported having suicidal ideation, 10.5% having suicide attempts in the past 6 months, 16.9% having insomnia symptoms, 2.3% having taken hypnotic medication, and 48.9% having experience of nightmares in the past month. Mean night sleep duration was 7.6 hours (SD = 0.8). Logistic regression analyses showed that sleeping less than 8 hours at night (OR = 2.89, 95% confidence interval [CI] = 1.07-7.81) and frequent nightmares (OR = 2.43, 95% CI = 1.76-3.35) were significantly associated with increased risk for suicide attempts after adjustment for age, sex, father's occupation, and depressive symptoms and that nightmares (OR = 1.69, 95% CI = 1.20-2.38) were also significantly related to suicidal ideation. CONCLUSION: These findings demonstrate the association between short sleep duration and nightmares and suicidal behavior and highlight the potential role of sleep intervention in the prevention of adolescent suicide.     

Psychiatric morbidity is related to parental age: a national cohort study

BACKGROUND: The median age at first childbirth has increased dramatically in many high-income countries during the past decades. The psychiatric consequences of this demographic change are insufficiently described on a population level. This study aimed to investigate whether parental age at childbearing is related to psychiatric morbidity among Swedish youths. METHOD: This was a cohort study based on Swedish national registers. A national cohort of 292129 children born to primiparas women during 1973-1979 was followed prospectively from 1987 to 2002 in registers. Multivariate Cox analyses of proportional hazards were used to estimate the relative risk of hospital admission for schizophrenia, alcohol and illicit drug abuse, suicide attempts and deaths. RESULTS: Youths born of teenage mothers had a high risk for suicide death [relative risk (RR) 1.9, 95% confidence interval (CI) 1.3-2.7] and hospital admissions because of suicide attempt (RR 2.0, 95% CI 1.7-2.3) and substance abuse (alcohol: RR 1.6, 95% CI 1.4-1.8; illicit drug: RR 2.2, 95% CI 1.9-2.5) after adjustments for major sociodemographic confounders, compared with children of mothers aged 25-29 years. Offspring of older parents (>34 years) had the highest risk for schizophrenia (RR 1.8, 95% CI 1.0-3.0). CONCLUSIONS: Parental age is related to psychiatric morbidity.     

Suicide in psychiatric in-patients in England, 1997 to 2003

BACKGROUND: Psychiatric in-patients are at particularly high risk of suicide but few studies have investigated trends in in-patient suicide over time. METHOD: We conducted a prospective study of all patients admitted to National Health Service (NHS) in-patient psychiatric care in England (1997-2003). The study was carried out as part of the National Confidential Inquiry into Suicide. The main outcome measure was death by suicide. Suicide rates were determined using Hospital Episode Statistics (HES) as the denominator. RESULTS: Between the first 2 years of the study (1997 and 1998) and the last 2 years of the study (2002 and 2003) the annual number of in-patient deaths from suicide fell from 187 to 156 (a 17% reduction). The rate of in-patient suicide fell by between 9% and 28% depending on which denominator was used. This fall was observed for both males and females, and was most marked for those aged 15-44 years. Reductions were also observed for the three most common methods of death (hanging, jumping, poisoning), but the trend for hanging did not reach statistical significance. Although the number of post-discharge suicides fell, the risk of post-discharge suicide (using admissions as a denominator) may have increased by as much as 10% during the study period. CONCLUSION: The rate of suicide among psychiatric in-patients appears to have fallen. The fall may reflect falling general population rates, changes in in-patient case mix, service improvements, or a transfer of risk to the post-discharge period. Services need to be aware of the importance of providing high quality aftercare following discharge from hospital.     

Assessing depressive symptoms in persons who die of suicide in mainland China

BACKGROUND: The potential insensitivity to depression of translated diagnostic instruments makes it difficult to assess the relationship of depressive symptoms to suicide in non-Western cultures. METHODS: Addition of culturally sensitive probes and other modifications were made to the depression section of the Chinese version of the SCID; the standard SCID probes and the expanded-probes are separately used to assess each symptom of depression, the resultant diagnoses and the overall severity of depression. This modified SCID was included in the psychological autopsy interviews with family members and, separately, close associates of 887 suicides and 721 non-suicidal decedents from 23 regions of mainland China. RESULTS: Compared to the standard interview, the expanded-probe method increased reported prevalence of major depressive episode among suicide decedents from 26.4% (234/887) to 40.2% (357/887) and for other deaths from 1.0% (7/721) to 2.1% (15/701). The additional 131 cases identified using the expanded-probe method had substantial social impairment and a greatly elevated risk of suicide compared to those with no depressive symptoms (OR=37.0, 95% CI=17.6-77.6). Inter-observer reliability for major depressive episode between the two independent interviews was greater for the expanded probe method (ICC=0.77 vs. 0.67, P<0.001). For both interview methods there was a strong dose-response relationship between suicide risk and the number and severity of depressive symptoms. LIMITATIONS: This study uses proxy informants to obtain information about the psychological status of deceased subjects; the value of this expanded-probe method for the diagnosis of depression in non-Western cultures needs to be confirmed with living subjects. CONCLUSIONS: Adding culture-appropriate probes about depressive symptoms to standardized diagnostic instruments identifies many Chinese subjects with unrecognized depression. Dimensional measures of depressive symptoms are more powerful predictors of suicide risk than categorical diagnoses.     

Life problems and physical illness as risk factors for suicide in older people: a descriptive and case-control study

BACKGROUND: The role of physical illness and life problems in contributing to suicide in older people is potentially important with regard to suicide prevention. METHOD: The aim of the study was to determine the life problems other than psychiatric illness contributing to suicide in older people. Semi-structured psychological autopsy interviews, covering life problems and physical illness prior to death, were conducted with informants for 100 people aged 60 years old and over who died through suicide in five English counties. Interviews were completed with informants for 54 age- and sex-matched control subjects who died through natural causes. RESULTS: The three most frequent life problems associated with suicide were physical illness, interpersonal problems, and bereavement. Physical health problems were present in 82% and felt to be contributory to death in 62%. Pain, breathlessness and functional limitation were the most frequent symptoms. Interpersonal problems were present in 55% of the sample and contributory in 31%. The corresponding figures for bereavement-related problems were 47% and 25%. In the case-control analysis, the problems found to be risk factors for suicide were problems related to a bereavement over 1 year before death (OR 3.5, 95% CI 1.2-10.6), and problems with accommodation (OR 5.0, 95% CI 1.1-22.8), finances (p=0.01), and retirement (p=0.02). CONCLUSION: Physical illness, interpersonal problems and bereavement are commonly associated with suicide in older people, but financial, accommodation, retirement and long- term bereavement-related problems may be more specific risk factors.     

农村自杀者心理解剖条件Logistic回归分析

目的：应用心理解剖的方法探讨农村自杀的危险因素。方法：选择2000年～2001年辽宁省大连金州和庄河地区自杀死亡者66例，并按1：1选取对照组进行问卷调查。结果：本次研究的结果有3个因素作为自杀的重要危险因素保留在最后的方程中，分别为社会支持总分(OR=0．66，95％CI=0．48～0．91)、汉密顿抑郁总分(OR=1．18，95％CI=1．03～1．35)、神经症(OR=2594．59，95％CI=6．29～1069550)。结论：自杀并不是单一因素作用的结果，预防自杀要对多个因素共同干预。