Table 2 Descriptive data for mothers for whom complete genetic data was available and were included in analyses, and those with missing genetic data.
Variable | Cases with missing data | Complete case for analysis | ||
|---|---|---|---|---|
N | % | N | % | |
Mothers highest educational qualification | ||||
CSE | 603 | 22.13 | 575 | 12.46 |
Vocational | 287 | 10.53 | 371 | 8.04 |
O-level | 960 | 35.23 | 1589 | 34.44 |
A-level | 549 | 20.07 | 1258 | 27.26 |
University degree | 313 | 11.49 | 809 | 17.53 |
Mothers marital status | ||||
Never married | 570 | 19.68 | 571 | 12.28 |
Widowed | 5 | 0.17 | 6 | 0.13 |
Divorced | 138 | 4.76 | 154 | 3.31 |
Separated | 57 | 1.97 | 49 | 1.05 |
1st marriage | 1930 | 66.62 | 3519 | 75.66 |
2nd or 3rd marriage | 172 | 5.94 | 329 | 7.07 |
Mothers parity | ||||
Zero | 1168 | 40.51 | 2146 | 46.19 |
One | 1074 | 37.23 | 1628 | 35.04 |
Two or more | 589 | 20.42 | 825 | 17.76 |
Mother ever smoked | ||||
Yes | 1497 | 51.93 | 2073 | 44.62 |
No | 1364 | 47.31 | 2553 | 54.95 |
