Is initiation of smoking associated with the prodromal phase of schizophrenia?
نویسندگان
چکیده
OBJECTIVE Although the association between smoking and schizophrenia is well known, little attention has been paid to the time between initiation of smoking and onset of schizophrenia. Our goal was to study this putative temporal relation among patients with schizophrenia. METHODS We used data from the Northern Finland 1966 Birth Cohort (n = 11,017) linked with the National Finnish Hospital Discharge Register to study age at initiation of smoking and age at onset of schizophrenia, and we examined associations between family and environmental factors and the retrospectively determined regular smoking among patients with schizophrenia. RESULTS Our main finding was that the initiation of regular smoking was closely related to the onset of schizophrenia. The mean difference in time between the initiation of regular smoking and the onset of schizophrenia among patients (n = 30) was 2.3 (standard deviation [SD] 6.6) years, which was statistically significantly lower than that for subjects with other psychoses (n = 18) (8.6 [SD 6.3] yr) (p < 0.001). Among patients with schizophrenia, the increased likelihood of smoking was associated only with paternal smoking in the family environment, but not with any other background factors (odds ratio 3.5, 95; confidence interval 1.9-11.3). CONCLUSION Smoking may be a sign of the prodromal phase of schizophrenia.
منابع مشابه
THE PRODROMAL PHASE OF WHAT? THE PRODROMAL PHASE OF WHAT? A Metapsychiatric Analysis of the Prodromal Phase of Schizophrenia
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ورودعنوان ژورنال:
- Journal of psychiatry & neuroscience : JPN
دوره 30 1 شماره
صفحات -
تاریخ انتشار 2005