Table 1 Description of variables investigated in terms of associations with TLBW
Source | Classification | Variable | Description |
|---|---|---|---|
SINASC | Dependent variable | Low Birth Weight | No (≥ 2.500g) Yes (< 2.500g) |
100 Million Brazilian Cohort | Distal variables (Demographic and Socioeconomic characteristics) | Geographic region | South North Northeast Center-West Southeast |
Area of residence | Urban Rural | ||
Domiciliary conditionsa | Appropriate Intermediate Inappropriate | ||
Self-declared maternal race/ethnicity | White/Yellow (Asian descent) Brown/Mixed-race (“parda”) Black Indigenous | ||
SINASC | Distal variables (Demographic and Socioeconomic characteristics) | Marital status | Married, civil union Single, divorced, widowed |
Maternal schooling (years of formal education) | Illiterate 1 to 3 4 to 7 ≥ 8 | ||
SINASC | Intermediate variable (Prenatal assistance) | Number of prenatal visits | None 1 to 3 4 to 7 7 or more |
Proximal variables (Maternal and newborn characteristics) | Maternal age at time of childbirth (years) | 14 to 20 20 to 35 35 to 49 | |
Newborn sex | Male Female | ||
Birth order (number of live childbirths including the current newborn) | 1st child 2nd to 4th child 5th or later |