Statistics for attempted suicide during follow-up among 2408 male bipolar patients.

Distribution of study variables, bivariate statistics, and adjusted odds ratios with 95% confidence interval (95% CI) for attempted suicide during follow-up among 2408 male bipolar patients recorded in the BipoläR 2004–2011 and followed-up annually 2005–2012.
aFatal or non-fatal attempted suicide during follow-up, as registered in the BipoläR at annual follow-ups.
bChi-square values derived from two-by-two tables, hence df = 1.
cWhen previous suicide attempts was explanatory variable, the logistic regression model included the potential confounder age as well as all variables in the table that had a significant p-value in bivariate comparison. When other variables in the table were explanatory variables, the variable previous suicide attempts was omitted.
dCategorical variable. Bipolar disorder type 1 was reference category in the chi-square tests and in the multiple regression.
eBipolar disorder of unspecified type.
fSchizoaffective disorder of bipolar type.
gOne cell had expected count less than 5; therefore, Fisher's exact test was used instead of the chi-square test.
hFirst-degree relatives; data available for a subset of the cohort only.
iData available for a subset of the cohort only.
jBefore 18 years of age; data available for a subset of the cohort only.
kFor instance, illness, injury, or poisoning.
lFor instance, family-, work- or economy-related.
mDirected towards people; data available for a subset of the cohort only.

本数据集涵盖2004至2011年间纳入BipoläR队列的2408名男性双相情感障碍患者的研究变量分布、双变量统计量，以及随访期内自杀未遂相关的校正比值比与95%置信区间（95% confidence interval, 95% CI）；所有受试者均于2005至2012年间接受年度随访。
a. 随访期间发生的致死性或非致死性自杀未遂，由BipoläR队列年度随访时登记所得。
b. 由四格表计算得到的卡方值，因此自由度（degrees of freedom, df）=1。
c. 当以既往自杀未遂作为解释变量时，逻辑回归（logistic regression）模型将纳入潜在混杂因素年龄，以及双变量比较中具有显著性p值的表内所有变量；当以表内其他变量作为解释变量时，则剔除既往自杀未遂变量。
d. 分类变量。在卡方检验与多元回归分析中，以1型双相情感障碍作为参照组。
e. 未特定分型的双相情感障碍。
f. 双相型分裂情感性障碍。
g. 存在1个单元格的期望频数小于5，因此采用Fisher确切概率法（Fisher's exact test）替代卡方检验。
h. 一级亲属相关数据，仅在该队列的部分受试者中可获取。
i. 相关数据仅在该队列的部分受试者中可获取。
j. 18岁以下相关数据，仅在该队列的部分受试者中可获取。
k. 例如：疾病、损伤或中毒事件。
l. 例如：家庭、工作或经济相关事件。
m. 针对他人的相关事件，仅在该队列的部分受试者中可获取。