家族型からみた世帯変動の定量分析に関する研究 : その2形式人口学による「家族生命表」の作成とその結果

Abstract

Life table has been developed as a very useful tool in demography. Although some kinds of table like marriage life table have already been made, family life tabel which is closely related to housing has not yet been available. In this paper using demographic method, a new concept of Family Life Table is proposed based on Marriage Life Table 1970, Vital Statistics 1970, 1970 Population Census of Japan. Family Life Table is consisted of three parts : Basic, Divorced and Widowed, and Remarriage. Basic part, dealing with couples both first married is a starting table of the others. It is a fundamental part, which is treated in this paper. The main foundings in this research on Family Life Table are as follows. (1) 90 % of cohort couples have a first child without divorced or widowed, and 80 % of couples experience it within 3 years of marriage. (2) 70 % of cohort couples keep married untill their first child grow over 18 years old. (3) The number of one-person households resulting from divorced or widowed without a child amount about 11 100 for wife, 9 500 for husband out of 100 000 after 60 years of marriage. (4) 66 % of cohort couples experience their first child's marriage without divorced or widowed. (5) Males divorced or widowed are easier to remarry than females. Divorced persons are more likely to remarry than those who widowed. The rate reaches about 75 % for males and 45 % for females, of which accumulated number of remarriage is devided by that of divorced and widowed one-person households, and that of father with child (ren) reaches about 65 %, mother with child (ren) reaches 20 %.