Table 1.
Baseline characteristics
| mOPV1: 1 week interval between doses (N=207) | mOPV1: 2 week interval between doses (N=204) | mOPV1: 4 week interval between doses (N=212) | bOPV: 4 week between doses interval (N=206) | |
|---|---|---|---|---|
| Sex of baby | ||||
| Female | 103/207 (50%) | 100/204 (49%) | 105/212 (50%) | 99/206 (48%) |
| Male | 104/207 (50%) | 104/204 (51%) | 107/212 (50%) | 107/206 (52%) |
|
| ||||
| Completion of primary education by parent (usually by age 9–11 years) | ||||
| Father | 74/207 (36%) | 64/204 (31%) | 59/212 (28%) | 76/206 (37%) |
| Mother | 42/207 (20%) | 43/204 (21%) | 52/212 (25%) | 56/206 (27%) |
|
| ||||
| Home birth | 173/207 (84%) | 179/204 (88%) | 183/212 (86%) | 178/206 (86%) |
|
| ||||
| Birthweight, kg | 2.96 (0.38) | 2.97 (0.41) | 2.99 (0.39) | 2.90 (0.38) |
|
| ||||
| Interval between birth and giving tOPV, h | 17 (8–31) | 14 (7.3–24) | 16.5 (7.3–24) | 16 (7.8–25) |
|
| ||||
| Family size | 8 (6–12) | 8 (6–12) | 8 (5–10) | 8 (6–11) |
|
| ||||
| Households with monthly income <10 000 Pakistani rupees | 136/207 (66%) | 144/204 (71%) | 147/212 (69%) | 135/206 (66%) |
Data are n/N (%), mean (SD), or median (IQR). mOPV1=monovalent oral polio vaccine type 1. bOPV=bivalent OPV type 1 and 3. tOPV=trivalent oral polio vaccine.