Gender differences in adolescents and young adults with suicidal behaviour.

OBJECTIVE: Gender differences in prevalence rates of suicide attempts and suicidal thoughts as well as in risk factors for suicide attempts such as traumatic events and mental disorders were investigated in a random sample of 3021 adolescents aged 14-24 years. METHOD: The M-CIDI (Composite International Diagnostic Interview) was used to survey suicidal behaviour, DSM-IV lifetime diagnoses and traumatic events. RESULTS: The female suicide attempters showed suicidal thoughts and suicide attempts significantly more often, and suicide attempts at a much younger age than the males. Furthermore, the females experienced sexual abuse much more often, and suffered significantly more often from anxiety disorders. The male suicide attempters showed higher rates of alcohol disorders and financial problems. CONCLUSION: A higher rate of anxiety in female suicide attempters results probably as a consequence of sexual abuse, which in turn makes them more vulnerable than males for attempting suicide between the age of 14-17.     

Gender differences in psychiatric symptoms related to suicidal ideation in Japanese patients with depression

Recent figures show that more than 30,000 people suicide each year in Japan, and that many of them are considered to suffer from depression. In addition, the suicide rate among Japanese women has been shown to be higher than in other countries. However, it is not clear whether the psychiatric symptoms leading to suicide differ by gender. The authors examined gender differences in psychiatric symptoms related to suicidal ideation (SI) in Japanese patients with depression. Study subjects were 199 new patients (66 men and 133 women) who were diagnosed with a major depressive disorder. SI and psychiatric symptoms were assessed by several psychological tests using questionnaires. Logistic regression analysis was used to calculate the odds ratio (OR) and 95% confidence interval (CI) with an adjustment for all relevant factors simultaneously. The stepwise method was also used for selecting variables. In univariate analysis, several psychosocial factors such as self-reproach, derealization, depressive moods, depersonalization, and anxiety traits were statistically significantly associated with SI in both men and women. However, multivariate analysis using the stepwise method distinguished gender differences. Low social/family support and depersonalization were statistically significantly associated with SI in men, while depressive moods and an anxiety state were significantly associated with SI in women. The relation between derealization and SI was statistically significant in women but not significant in men.     

A longitudinal study of suicidal ideation in young adolescents

As part of a longitudinal study of depression and suicidal ideation in adolescents, a three-item suicide screen was administered to 1,073 students for 3 consecutive years starting at the beginning of the 7th or 8th grades. Each year over 70% of respondents reported no suicidal thoughts, and less than 5.5% attained high suicide ideation scores. Blacks and females had higher scores, respectively, than did whites and males. The individual students' suicide scores were less stable than the overall distributions with 1- and 2-year correlations reaching 0.35 and 0.28, respectively. Only one student received a high score all 3 years. The best predictors of a given year's suicide score was the previous years' depression scores. Gender, undesirable life events, family adaptability, and family cohesion were significant but less consistent predictors.     

首次发作的儿童青少年抑郁障碍患者中性粒细胞与淋巴细胞比值和自杀意念的关系

背景 自杀是全球严重的公共卫生问题之一。自杀与中性粒细胞与淋巴细胞比值（NLR）的关系可能在不同地区和不同年龄的人群中存在差异,有必要进一步研究NLR与我国儿童青少年抑郁障碍患者自杀意念之间的关系。目的 探讨儿童青少年抑郁障碍患者NLR与自杀意念的相关性,为探寻自杀的生物学指标提供线索。方法 回顾性纳入2020年1月-2022年12月在阜阳市第三人民医院住院治疗的536例符合《国际疾病分类（第10版）》（ICD-10）诊断标准的儿童青少年抑郁障碍患者,根据患者是否报告存在自杀意念,将患者分为两组。从病历中收集患者的人口学资料、出院诊断以及入院第二天的汉密尔顿抑郁量表17项版（HAMD-17）评分和血液学检验数据（中性粒细胞计数、淋巴细胞计数）。使用受试者操作特征曲线（ROC）测定NLR预测儿童青少年抑郁障碍患者自杀意念的最佳临界点,采用二元Logistic回归分析探索患者自杀意念的危险因素。结果 在536例患者中,无自杀意念者429例（80.04%）,有自杀意念者107例（19.96%）。与无自杀意念组相比,有自杀意念组HAMD-17评分更高[（25.28±8.86）分vs.(21.2...     

Psychotic-like experiences and their relationship to suicidal ideation in adolescents

Studies have suggested that psychotic-like experiences (PLEs) are associated with behavioral problems in adolescents. The aim of this study was to investigate relationships between domains of PLEs, suicidal ideation, and depression in a large community sample of adolescents. The sample consisted of 8096 Korean subjects (3184 boys and 4912 girls) aged 14 to 19 years. The level of PLEs, depression, and suicidal ideation were assessed by the Eppendorf schizophrenia inventory (ESI), Beck's depression inventory, and Beck's scale for suicidal ideation, respectively. Both the level of depression and suicidal ideation were significantly associated with PLEs. Among the four domains of the ESI, the deviant perception, ideas of reference, and auditory uncertainty were associated with the suicidal ideation. Additionally, subjects with more PLEs had significantly more suicidal ideation and depressive symptoms. PLEs in adolescents are associated with potential risk of suicide and depressive symptoms significantly mediated the association between suicidal ideation and PLEs. The presence of perceptual disturbances, ideas of reference, and depression may be regarded as warning signs for suicide-related behaviors.     

No relationship between serum cholesterol and suicidal ideation and depression in African-American diabetics.

Low serum cholesterol has been associated with suicidal behavior. Depression has been postulated to be a mediating factor between low serum cholesterol and suicidal behavior. Therefore, this possibility was examined in a large group of 459 diabetic patients that had blood drawn for serum cholesterol levels on the same day that they completed the Beck Depression Inventory. The results failed to show any significant relationship between serum cholesterol levels and either total Beck Depression Inventory (BDI) scores or BDI scores on the item measuring current suicidal ideation. The limitations of the study are discussed.     

不同性别抑郁症患者自杀意念的相关危险因素比较

目的 研究抑郁症患者自杀意念相关因素的性别差异,为自杀的干预和预防提供更多的证据.方法 依据DSM-IV抑郁症诊断标准入组122例有自杀意念的抑郁症患者和129例无自杀意念的抑郁症患者,进行不同性别间各项目的比较分析.结果 男女抑郁症患者在婚姻、文化程度、职业、收入水平和生活事件、艾森克人格测验的内外倾向、神经质和掩饰性方面差异有统计学意义.结论 男性与女性抑郁症患者的自杀意念危险因素存在一定差异,健全的人格,积极的应对方式,良好的家庭环境,在自杀预防中有重要意义.     

The association between attitudes toward suicide and suicidal ideation in adolescents

The aims of this study were to determine whether adolescent attitudes to suicide could be grouped into distinct factors, and then to examine the relationship between these factors and the psychosocial parameters known to be associated with suicide, and between attitudes towards suicide and suicidal ideation. A questionnaire designed to assess attitudes to suicide was distributed to a total of 525 Israeli adolescents. Statistical analysis indicated that the attitude items could be grouped into four distinct factors: the right of society to prevent suicide; suicide as a symptom of mental illness; the right of the individual to talk about suicide; and taking suicidal behaviour seriously. Each factor was differentially associated with the various psychosocial parameters examined. The association between the attitude factors and subjects' suicidal ideation was significant and at least as strong as that of the psychosocial parameters normally associated with adolescent suicide, namely gender and exposure to suicide. A generally approving attitude towards suicide was correlated with a high level of suicidal ideation.     

Electronic media use and suicidal ideation in Japanese adolescents

The present study found that a lifetime history of suicidal ideation may be significantly associated with a history of searching the Internet for information about suicide or self‐injury, experiences of anxiety or emotional pain related to the use of electronic media, and adolescents' distrust of the people around them. The impact of experiences using electronic media on suicidal ideation among Japanese adolescents is discussed.     

Gender differences in the mediated relationship between alcohol use and academic motivation among late adolescents

This study utilized structural equation modeling to examine the relationship between alcohol use and academic motivation controlling for potentially mediating variables of deviant behavior, depressive cognitions, family communication, and peer relations. The study also examined the manner in which these relationships were moderated by gender. Results indicated that alcohol use was directly related to deviance for both males and females, but was not associated with depressive cognitions for either males or females. Deviant behavior was directly associated with depressive cognitions for both males and females, but this effect was significantly stronger for females. Deviance was significantly, inversely related to family communication among males, but not females. Depressive cognitions were significantly, inversely related to family communication for both males and females. Family communication and peer relations were directly related to academic motivation for both males and females, and the relationship between family communication and academic motivation was also mediated through peer relations. The necessity of providing information that focuses on minimizing involvement in deviant behaviors for females and the differential importance of family and peer relations is discussed.     

The associations between health risk behaviours and suicidal ideation and attempts in a nationally representative sample of young adolescents.

OBJECTIVE: To examine associations between health risk behaviours and suicidal ideation and attempts in Canadian adolescents aged 12 to 13 years. Young adolescents think about and attempt suicide. However, most existing research on suicide has been conducted on individuals aged 15 years and older. METHOD: The present study examined a nationally representative Canadian sample of adolescents aged 12 to 13 years (n=2090). Health risk behaviours included disruptive (shoplifting, physical fighting, damaging property, fighting with a weapon, carrying a knife, and gambling), sexual (petting below the waist and sexual intercourse), and substance use behaviours (smoking cigarettes, consuming alcohol, marijuana or hash, and glue or solvents). Unadjusted and adjusted (for all significant health risk behaviour and psychiatric symptoms) models were tested. RESULTS: All health risk behaviours were common among male and female adolescents. In unadjusted models, almost all health risk behaviours were associated with suicidal ideation and attempts among adolescent boys. In adjusted models, only damaging property, sexual intercourse, and smoking cigarettes remained statistically associated with suicidal ideation, while smoking cigarettes and using marijuana or hash remained statistically associated with suicide attempts among adolescent boys. All health risk behaviours were statistically associated with suicidal ideation and attempts among female adolescents in unadjusted models. In adjusted models, only carrying a knife remained statistically associated with suicidal ideation, while shoplifting and gambling remained statistically associated with suicide attempts among adolescent girls. CONCLUSIONS: Health risk behaviours among young adolescents are associated with suicidal ideation and attempts among young adolescents. Recognizing health risk behaviours among young adolescents may be one means of understanding who among them is at increased risk of suicidality.     

有自杀意念的儿童青少年双相障碍抑郁发作患者SLC6A4 基因甲基化研究

目的 探讨儿童青少年双相障碍（PBD）抑郁发作患者自杀意念与SLC6A4基因甲基化 的关系。方法 选取 2020 年 12 月至 2022 年 12 月于新疆维吾尔自治区人民医院临床心理科住院的 43 例 PBD 抑郁发作患者为研究对象。采用自杀意念自评量表（SIOSS）评估患者的自杀意念，将总分≥ 12 分且掩饰因子得分＜ 4 分的患者纳入有自杀意念组（n=29），将总分＜ 12 分的患者纳入无自杀意念组 （n=14）。采用 Methprimer 软件对SLC6A4基因启动子区进行甲基化岛预测和甲基化引物设计，将提取好 的DNA经亚硫酸盐转化后进行PCR扩增和焦磷酸盐测序，确定甲基化的CpG位点和甲基化率。比较两组 患者SLC6A4基因不同位点甲基化的差异，采用 Spearman 相关分析基因甲基化与自杀意念的相关性。 结果 基因甲基化检测结果显示，两组患者SLC6A4基因甲基化的位点包括 CpG1、CpG2.3、CpG4、 CpG5.6位点。有自杀意念组与无自杀意念组患者CpG1、CpG2.3、CpG4位点的基因甲基化率比较［48.28% （14/29）比 8/14、96.55%（28/29）比 14/14、20.69%（6/29）比 6/14］，差异无统计学意义（χ2 =0.297、0.494、2.306； P＞ 0.05）。有自杀意念组患者的 CpG5.6 位点基因甲基化率高于无自杀意念组［68.97%（20/29）比 5/14］， 差异有统计学意义（χ2 =4.289，P＜ 0.05）。相关分析结果显示，PBD 抑郁发作患者的 SIOSS 得分与 SLC6A4基因甲基化CpG1位点、CpG2.3位点、CpG4位点不存在相关性（r=-0.244、-0.210、-0.281；P＞0.05）； 与甲基化 CpG5.6 位点呈正相关（r=0.312，P＜ 0.05）。结论 PBD 抑郁发作患者的自杀意念与SLC6A4基 因甲基化 CpG5.6 位点有关，为明确其自杀意念的发生原因提供了基础。     

Prevalences of lifetime histories of self-cutting and suicidal ideation in Japanese adolescents: differences by age

We examined differences in the prevalence of a lifetime history of self-cutting and suicidal ideation by age among junior and senior high-school students. Histories of self-cutting and suicidal ideation were reported by 9.9% and 40.4% of the students. Among early teens, females were more likely to report suicidal ideation than males, and among late teens, females were more likely than males to report self-cutting.     

The relationship between suicide ideation and late-life depression.

OBJECTIVE: To describe the course of suicide ideation (SI) in primary-care based late-life depression treatment, identify predictors of SI, characterize the dynamic relationship between depression and SI, and test the hypothesis that collaborative care decreases the likelihood of reporting SI by decreasing the severity of depressive symptoms. METHODS: This was a secondary analysis of a randomized controlled trial comparing collaborative care to usual care for late-life depression. Participants were 1,801 adults age 60 and older from eight diverse primary-care systems. Depression was measured using the Hopkins Symptoms Checklist (HSCL-20). SI was operationalized using one item from the HSCL-20. Predictors of incident SI were identified by a series of univariate analyses followed by multiple logistic regression. A mediator analysis was conducted to test the hypothesis that the effect of collaborative care on SI can be ascribed to the intervention's effect on depressive symptoms. RESULTS: The prevalence of SI was 14% (N = 253); the cumulative incidence over 24 months was 21% (385). The likelihood that SI emerged after baseline was highly dependent on change in depression (odds ratio: 5.38, 95% confidence interval: 3.93-7.36, df = 81, t = 10.66, p <0.0001). As hypothesized, the effect of collaborative care on SI was mediated by the treatment's effect on depression. CONCLUSION: SI is not uncommon in depressed older adults being treated in primary care. The likelihood that depressed older adults will report SI is strongly determined by the course of their depression symptoms. Providers should monitor SI throughout the course of depression treatment.