期刊
SOCIAL PSYCHIATRY AND PSYCHIATRIC EPIDEMIOLOGY
卷 44, 期 1, 页码 34-38出版社
DR DIETRICH STEINKOPFF VERLAG
DOI: 10.1007/s00127-008-0404-3
关键词
IQ; NART; suicidal thoughts; cohort
类别
资金
- Department of Health
- Scottish Executive Health Department
- Economic and Social Research Council [ES/G007543/1] Funding Source: researchfish
- ESRC [ES/G007543/1] Funding Source: UKRI
Background Studies in young male conscripts suggest that low IQ scores are associated with an increased risk of suicide. Mechanisms underlying this association are unclear. Aim To investigate the association of IQ, as indexed by the national adult reading test (NART), with the incidence of, and recovery from, suicidal thoughts. Method An 18-month follow-up of 2,278 of the adults who took part in the Britain's second national psychiatric morbidity survey who completed the NART at baseline. Results There was no evidence that poor performance on the NART was associated with an increased incidence of suicidal thoughts over the 18 month follow-up (adjusted odds ratio per 10 unit increase in NART-IQ 1.08 (95% CI 0.86-1.36). However, amongst the 155 subjects with suicidal thoughts at baseline, those with low NART-IQ were least likely to recover from them: the adjusted odds of recovery per 10 unit increase in NART-IQ was 1.42 (95% CI 0.96-2.10). Conclusion The association between low IQ and an increased risk of suicide may be because people with low IQ experience suicidal thoughts for more prolonged periods than those with high IQ or because low IQ increase the likelihood that people experiencing suicidal thoughts act upon them.
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