This study was designed to determine if there is a relationship between the degree of suicide intent and the lethality of means employed by those who try to kill themselves. The study sample consists of 74 suicide attempters admitted to emergency rooms in a northeastern area of China. Structured interviews were performed with the patients and their companions to the hospital if necessary. It was found that the reason for the suicide attempt claimed by the highest percentage of attempters (35 of 74) was love/marriage issues, and there were significant gender differences in suicide reasons. It also was found that the choice of suicide means is generally independent of gender, and the lethality of means is positively correlated with the degree of suicide intent. One of the implications of the findings is a better understanding of the higher suicide rates for Chinese women than Chinese men. A hypothesis for future study on Chinese suicide may be that the high fatality rate of Chinese women who have swallowed poisonous pesticide is a function of the strong intent of death of the victim coupled with the well-known lethality of the pesticides.

Previous studies have tried to account for the uniqueness of gender ratios in Chinese suicide through physiological and psychological differences between men and women, and the means employed in the fatal act. From the point of view of the socio-psychological traits, this study examines the effects of religion (religiosity), superstition, and perceived gender inequality among Chinese women on the degree of their suicide intent. A four-page structured interviews were performed to the consecutively sampled serious attempters of suicide hospitalized to emergency rooms immediately after the suicidal act in Dalian areas, China. Both univariate analyses and the multiple regression model have found that the higher the degree the religiosity and superstition on metempsychosis, the stronger the suicide intent Chinese women had. The perceived gender inequality is positively correlated with suicide intent, and it is especially true for Chinese women. The socio-psychological traits and traditional culture values and norms have important impacts on suicide patterns in Chinese societies.

Objectives To investigate whether age at onset of epilepsy, type of epilepsy, family history of psychosis, or family history of epilepsy affect the risk of schizophrenia or schizophrenia-like psychosis among patients with epilepsy.

Design Comparison of population based data.

Setting Danish longitudinal registers.

Subjects The cohort comprised 2.27 million people.

Main outcome measures Epilepsy, psychosis, personal birth data.

Results We found an increased risk of schizophrenia (relative risk 2.48, 95% confidence interval 2.20 to 2.80) and schizophrenia-like psychosis (2.93, 2.69 to 3.20) in people with a history of epilepsy. The effect of epilepsy was the same in men and in women and increased with age. Family history of psychosis and a family history of epilepsy were significant risk factors for schizophrenia and schizophrenia-like psychosis, and the effect of epilepsy, both in cases and families, was greater among people with no family history of psychosis. In addition, the increased risk for schizophrenia or schizophrenia-like psychosis did not differ by type of epilepsy but increased with increasing number of admissions to hospital and, particularly, was significantly greater for people first admitted for epilepsy at later ages.

Conclusions There is a strong association between epilepsy and schizophrenia or schizophrenia-like psychosis. The two conditions may share common genetic or environmental causes.