Table 2.
Pregnancy Characteristics Among AF Cases and Non‐AF Controls
| Characteristic | AF Cases (N=105) | Controls (N=105) | P Valuea |
|---|---|---|---|
| Age at first delivery (y), mean (SD) | 24.44 (4.53) | 25.02 (4.64) | 0.36 |
| Total gravida per patient, n (%) | 0.83 | ||
| 1 | 7 (6.7%) | 6 (5.7%) | |
| 2 | 27 (25.7%) | 30 (28.6%) | |
| 3+ | 71 (67.6%) | 69 (65.7%) | |
| Total parity per patient, n (%)b | 0.74 | ||
| 1 | 11 (10.5%) | 6 (5.7%) | |
| 2 | 31 (29.5%) | 41 (39.0%) | |
| 3+ | 63 (60.0%) | 58 (55.2%) | |
| Total number of live births | 335 | 311 | … |
| Total number of stillbirths | 3 | 2 | … |
| Total number of pregnancies <20 wks | 59 | 42 | … |
| BMI>30 at any first prenatal visitb, n (%)c | 18 (17.1%) | 3 (2.9%) | <0.001 |
AF indicates atrial fibrillation; BMI, body mass index.
a
P values derived from equal variance t tests and Wilcoxon rank sum tests for continuous and ordinal measures and χ2 and Fisher exact test for categorical measures
b
Parity: any live or stillbirth >20 wks.
c
First prenatal visit was restricted to occur before 20 gestational wks.