Table 1.
Survey response descriptive statistics.
| Statistic | Cohort model | Census model | |
| Participation | |||
|
|
Total eligible women, N | 9827 | 7826 |
|
|
Effective participation rate for first wave, n (%) | 3849 (39.17) | 3935 (50.28) |
|
|
Effective participation rate for last survey wave, n (%) | 3346 (34.05) | 1788 (22.85) |
| Response rate, n (%)a | |||
|
|
T0/T0g | 3849 (100.00) | 3935 (100.00) |
|
|
T1/T2g | 3706 (96.28) | 3038 (77.20) |
|
|
T3/T3g | 3633 (94.39) | 2463 (62.59) |
|
|
T5/T0p | 3500 (90.93) | 2325 (59.09) |
|
|
T6/T1p | 3477 (90.34) | 1807 (45.92) |
|
|
T12/T3p | 3346 (86.93) | 1788 (45.44) |
aFor the cohort model T0-T12 represent the time from delivery (0) and the months (1, 5, 6, and 12) postbirth. For the census model, T0g, T2g, and T3g represent the month (0, 2, and 3, respectively) of gestation, and T0p, T1p, and T3p represent the month (0, 1, and 3, respectively) postpartum. Also see Figure 1.