Table 1.
Sociodemographic characteristics at birth, breastfeeding and mental health outcomes at 30 years in individuals from the 1982 Pelotas birth cohort.
| Variable | Na | Mean (s.d.)/Median [IQR] | Prevalence % |
|---|---|---|---|
| Female | 1841 | 52 | |
| Mother’s with four or less years of schooling | 1135 | 32.1 | |
| Mother’s age at birth (years) | 3541 | 26.0 (6.2) | |
| Birth weight (grams) | 3541 | 3224 (526) | |
| Breastfeeding | |||
| <1 month | 753 | 21.3 | |
| 1–2.9 months | 909 | 25.7 | |
| 3–5.9 months | 816 | 23.0 | |
| ≥6 months | 1064 | 30.0 | |
| CMD | 853 | 24.1 | |
| MD | 272 | 7.9 | |
| GAD | 438 | 12.7 | |
| SAD | 127 | 3.7 | |
| BDI-II | |||
| Mild | 375 | 10.8 | |
| Moderate | 270 | 7.8 | |
| Severe | 179 | 5.2 | |
s.d.=standard deviation. IQR=Interquartile range. CMD=Common mental disorders. MD=Major depression. GAD=Generalized anxiety disorder. SAD=Social anxiety disorder. BDI=Beck depression inventory.
a
Number of individuals with data on at least one mental health outcome and breastfeeding.