| Short interbirth intervals | Long interbirth intervals | ||||
---|---|---|---|---|---|---|
Model 1 | Model 2 | Model 3 | Model 1b | Model 2b | Model 3b | |
Migration | ||||||
 Non-migrant (Ref.) | 1 | 1 |  | 1 | 1 |  |
 Migrant | ||||||
   < 5 years in Cotonou | 1.71*** (1.33–2.21) | 1.60*** (1.23–2.08) |  | 0.64*** (0.47–0.87) | 0.67** (0.50–0.91) |  |
  5–10n years in Cotonou | 0.97 (0.76–1.24) | 0.90 (0.69–1.16) |  | 0.95 (0.78–1.16) | 0.98 (0.80–1.21) |  |
   > 10 years in Cotonou | 0.99 (0.81–1.21) | 0.97 (0.78–1.19) |  | 1.02 (0.89–1.18) | 1.06 (0.92–1.23) |  |
Migration * Reason for migration | ||||||
 Non-migrant (Ref.) |  |  | 1 |  |  | 1 |
 In-migrant |  |  |  |  |  |  |
   < 5 years in Cotonou | ||||||
   For job or school reason |  |  | 1.52** (1.03–2.26) |  |  | 0.67* (0.43–1.06) |
   Neither for job nor for school reason |  |  | 1.59**(1.11–2.28) |  |  | 0.67* (0.45–1.01) |
  5–10 years in Cotonou | ||||||
   For job or school reason |  |  | 1.13 (0.81–1.59) |  |  | 1.03 (0.80–1.31) |
   Neither for job nor for school reason |  |  | 0.67** (0.46–0.98) |  |  | 0.89 (0.60–1.31) |
   > 10 years in Cotonou | ||||||
   For job or school reason |  |  | 1.16 (0.88–1.53) |  |  | 1.03 (0.85–1.25) |
   Neither for job nor for school reason |  |  | 0.74* (0.54–1.02) |  |  | 1.12 (0.89–1.40) |
Education | ||||||
 No education (Ref.) |  | 1 | 1 |  | 1 | 1 |
 Primary |  | 0.81** (0.66–1.00) | 1.58*** (1.20–2.09) |  | 1.08 (0.91–1.27) | 0.85 (0.69–1.05) |
 Secondary or higher |  | 0.71*** (0.57–0.90) | 0.80** (0.65–0.99) |  | 1.15* (0.98–1.36) | 1.07 (0.91–1.27) |
Employment | ||||||
 Employed (Ref.) |  | 1 | 1 |  | 1 | 1 |
 Unemployed |  | 1.26*** (1.07–1.50) | 0.71*** (0.56–0.90) |  | 0.86** (0.75–0.99) | 1.15* (0.98–1.36) |
Ideal number of children | ||||||
 1–3 children (Ref.) | 1 | 1 |  | 1 |  | 1 |
  > 3 children | 1.24** (1.01–1.52) | 1.25** (1.02–1.54) |  | 0.83*** (0.72–0.95) |  | 0.82*** (0.71–0.95) |
Modern contraceptive use | ||||||
 User | 1.02 (0.80–1.30) | 1.00 (0.78–1.28) |  | 0.97 (0.79–1.19) |  | 0.97 (0.79–1.19) |
 Non-user (Ref.) | 1 | 1 |  | 1 |  | 1 |
Religion | ||||||
 Muslim | 1.31** (1.04–1.65) | 1.33** (1.06–1.67) |  | 0.91 (0.75–1.10) |  | 0.91 (0.75–1.11) |
 Non-Muslim (Ref.) | 1 | 1 |  | 1 |  | 1 |
Marital status | ||||||
 Married (Ref.) | 1 | 1 |  | 1 |  | 1 |
 Unmarried | 1.70*** (1.37–2.12) | 1.69*** (1.36–2.11) |  | 0.69*** (0.58–0.83) |  | 0.69*** (0.58–0.83) |
Mother’s age at birth index | 1.01 (0.99–1.03) | 1.03*** (1.01–1.05) | 1.03*** (1.01–1.05) | 1.02*** (1.01–1.04) | 1.01 (1.00–1.03) | 1.01 (1.00–1.03) |
Had children of both sexes | ||||||
 Yes | 1.06 (0.76–1.47) | 1.06 (0.76–1.47) | 1.05 (0.76–1.46) | 0.91 (0.71–1.16) | 0.93 (0.72–1.20) | 0.93 (0.73–1.20) |
 No (Ref.) | 1 | 1 | 1 | 1 | 1 | 1 |
Previous number of live births | 1.01 (0.90–1.12) | 0.95 (0.86–1.05) | 0.94 (0.85–1.04) | 0.97 (0.88–1.06) | 1.01 (0.92–1.12) | 1.01 (0.92–1.12) |
Previous number of child deaths | 1.18* (0.98–1.43) | 1.20* (1.00–1.44) | 1.19* (0.99–1.42) | 0.83* (0.68–1.02) | 0.83* (0.67–1.02) | 0.82* (0.67–1.02) |
Observations | 2852 | 2852 | 2852 | 2852 | 2852 | 2852 |