Anales del Congreso ALAP
Anales del X Congreso ALAP

Brazil has been experiencing, since the 1960s, a drop in fertility levels. Since 2005 fertility has been below the replacement level and maintained its downward trajectory, reaching 1.7 in 2020. The combination of low TFR levels and increasing MAC, justifies the incorporation of other elements in the fertility analysis. Considering that fertility behavior can be described by the proportion of women who progress through parities and the time they take between parities, the study of the interval between births is opportune. In order to understand Brazilian fertility behavior, we seek the relationship between socioeconomic and demographic characteristics and the interval length to second birth. We seek to answer: (i) what are the socioeconomic and demographic characteristics associated with different interval lengths for the second birth over time; (ii) given certain women’s socioeconomic and demographic characteristics, what are the chances of observing different lengths of intervals to second birth over time.
Data come from the birth histories reconstructed from the 1991, 2000 and 2010 Brazilian Demographic Censuses. Multinomial logistic regressions were employed to examine the relationship between all the independent variables and the outcome variable.
The analysis suggested that socioeconomic and demographic characteristics differ and vary among second birth intervals in Brazil in all year census.