Araki S, Murata K
Tohoku J Exp Med. 1986 Aug;149(4):379-87. doi: 10.1620/tjem.149.379.
To clarify major social risk factors affecting the mortality from motor vehicle accident (MVA), we analyzed the effects of a wide variety of socioeconomic and demographic indicators (20 variables) on age-specific and age-adjusted mortality rates from MVA in 46 prefectures in Japan. The analysis was conducted twice at a 5-year interval, i.e., in 1970 and 1975, by stepwise regression analysis after classification of the indicators by factor analysis. The major social risk factors identified in the two years were as follows: (1) rural residence for persons, especially males, of major driving age (15-54 years) and young male children (0-4 years); (2) population growth by social mobility for schoolboys aged 5-14 years; and (3) high income (and employment) for schoolgirls, and proportion of old population for middle-aged females. Age-adjusted male rate of mortality from MVA within 46 prefectures was significantly higher in rural than urban areas in both 1970 and 1975.
为了明确影响机动车事故（MVA）死亡率的主要社会风险因素，我们分析了日本46个县中各种社会经济和人口指标（20个变量）对特定年龄和年龄调整后的MVA死亡率的影响。在1970年和1975年，以5年为间隔进行了两次分析，即在通过因子分析对指标进行分类后，采用逐步回归分析。这两年确定的主要社会风险因素如下：（1）主要驾驶年龄（15 - 54岁）的人群，尤其是男性，以及年幼男童（0 - 4岁）居住在农村；（2）5 - 14岁男学生因社会流动导致的人口增长；（3）女学生的高收入（和就业），以及中年女性中的老年人口比例。1970年和1975年，46个县中年龄调整后的男性MVA死亡率在农村地区均显著高于城市地区。
