Dyck R J, Newman S C, Thompson A H
Alberta Department of Community and Occupational Health, Edmonton, Canada.
Acta Psychiatr Scand. 1988 Apr;77(4):411-9. doi: 10.1111/j.1600-0447.1988.tb05143.x.
Using official suicide statistics, this study examined suicide rates in Canada over a 25-year span (1956 to 1981) as a function of age, gender, and geographical region. The analysis revealed that, for both sexes, the risk of suicide among the 15-24 year-olds increased at a faster rate than in any other age group. Male and female age-standardized suicide rates demonstrated an overall increase between 1956 and 1981. The trend for males was one of continuous increase, whereas female rates reached a maximum in 1976 and then decreased. Regional differences in suicide rates were also apparent. Although not strictly observed, a trend toward increasing risk of suicide in males as one proceeds westward across Canada was found. For females, a pattern of increasing suicide with more westerly location was also found, except that Ontario and the Prairie Provinces were in reverse order. Several possible explanations for these findings are presented.
本研究利用官方自杀统计数据，考察了加拿大在25年期间（1956年至1981年）按年龄、性别和地理区域划分的自杀率。分析显示，对于男女两性而言，15至24岁人群的自杀风险增速高于其他任何年龄组。1956年至1981年期间，男性和女性的年龄标准化自杀率总体呈上升趋势。男性的趋势是持续上升，而女性自杀率在1976年达到最高值，随后下降。自杀率的地区差异也很明显。尽管并非严格如此，但研究发现，随着人们从加拿大东部往西走，男性自杀风险呈上升趋势。对于女性，也发现了随着往西自杀率上升的模式，只是安大略省和草原省份的情况相反。文中给出了对这些研究结果的几种可能解释。
