Table 3 Comparison of the nonparametric characteristics of women with unexplained elevations of MSAFP according to those with and without complications of pregnancy.
Nonparametric Characteristics | Cases | Controls | p value |
|---|---|---|---|
Location | |||
Winnipeg | 44 | 63 | 0.854 |
southern city | 3 | 2 | |
southern town | 3 | 5 | |
southern rural | 8 | 8 | |
northern city | 2 | 1 | |
northern town | 1 | 4 | |
northern rural | 5 | 7 | |
ethnicity | 0.972 | ||
Caucasian | 52 | 66 | |
Aborginal | 2 | 2 | |
Mixed Caucasian/Aboriginal | 7 | 6 | |
Mixed Caucasian/Black | 1 | 3 | |
Asian | 1 | 1 | |
Mixed Caucasian/Asian | 1 | 1 | |
Unknown | 3 | 1 | |
diabetes in pregnancy | 2/67 | 1/80 | 0.207 |
maternal smoking present (0 = nonsmoker, 1–3 = half pks/day increments) | 0 = 47, 1 = 11, 2 or more = 9 | 0 = 60, 1 = 8, 2 or more = 12 | 0.721 |
gender of baby | 27 females, 40 males | 42 females, 38 males | 0.352 |
parity = number of women | 0 = 37, 1 = 20, 2 = 7, 3 or more = 3 | 0 = 40, 1 = 29, 2 = 7, 3 or more = 4 | 0.254 |
previous miscarriages | 11/67 | 15/80 | 0.203 |
previous case pregnancy | 1 | 0 | 0.967 |