Table 3.
Significant Differences in Pregnancy Complications in Clinic Populations (2-proportion z-test)
| Population (n) | Study vs Combined | Study vs Private | Study vs Community |
|---|---|---|---|
| Deliveries (664) | 111 vs 553 | 111 vs 322 | 111 vs 231 |
| Total complications (59) | 4 vs 55a | 4 vs 33a | 4 vs 22a |
|
P=.0161* (CI=98.39%) |
P=.0154* (CI=98.46%) |
P=.0265* (CI=97.35%) |
|
| Gestational diabetes mellitus (21) | 1 vs 20b | 1 vs 10b | 1 vs 10b |
|
P=.0678† (CI=93.22%) |
P=.1015 (CI=89.85%) |
P=.0465* (CI=95.38%) |
|
| Pregnancy-induced hypertension (28) | 2 vs 26a | 2 vs 18a | 2 vs 8a |
|
P=.0827† (CI=91.78%) |
P=.0505* (CI=94.95%) |
P=.1966 (CI=80.34%) |
|
| Large for gestational age (6) | 1 vs 5b | 1 vs 1b | 1 vs 4b |
|
P=.4987 (CI=50.13%) |
P=.7855 (CI=21.45%) |
P=.2745 (CI=72.55%) |
|
| Small for gestational age (4) | 0 vs 4c | 0 vs 4c | 0c |
|
P=.1844 (CI=81.56%) |
P=.1191 (CI=88.09%) |
NA |
Abbreviations: CI, confidence interval; NA, not available.
*
P<.05
†
P<.1
Power:
a = all case size low, so slightly under typical prerequisites
b = case size very low, moderately under statistic prerequisites
c = case size nonexistent, unsuitable for meaningful statistics