Fig 1.
Changes in Socioeconomic Status (SES) over Time: Individual change (Figure) and distribution of cohort (%) by sex.
The Figure shows individual change in SES at four ages for men and women separately. Above the figure for each time period, the proportion of men and women in the cohort with low, medium, and high SES is also given.
Fig 2.
Cumulative Incidence of First Birth by Childhood Socioeconomic Status (SES).
Table 1.
Distribution of first births and socioeconomic characteristics in the cohort over four age periods.
Fig 3.
Proportion of men and women with a first live birth in four age periods by socioeconomic status (SES).
Denominator in each period is those with no birth in a prior period. For the first age period childhood SES of the family is used.
Fig 4.
Proportion of men and women with a first live birth in four age periods by level of education.
Denominator in each period is those with no birth in a prior period.
Table 2.
Relative Risk (RR) of the occurrence of first birth according to socioeconomic factors at the start of each age period.
Table 3.
Multivariate models of the occurrence of first birth within each age period to assess independent effects of a) childhood SES and adult SES at the start of each period (Model 1); and b) adult SES and level of education at the start of each period (Model 2).