Table 3.
Frequency of PCR-Positive Colds During Pregnancy
| Cold Measures | Control (n = 117) | Asthma (n = 168) | Effect Size | P Value |
|---|---|---|---|---|
| Subjects with ≥ 1 PCR-positive colda | 22 (18.8) | 52 (31.0) | RR, 1.18; 95% CI (1.03, 1.34) | .0305 |
| Subjects with multiple PCR-positive cold eventsa | 3 (2.6) | 8 (4.8) | … | .5254 |
| PCR colds per person-weeksb | 0.0108 | 0.0182 | IRR, 1.18; 95% CI (0.72, 1.94) | .505 |
| Influenza Ac | 1 (3.4) | 5 (7.7) | … | … |
| Influenza Bc | 2 (6.9) | 3 (4.6) | … | … |
| Human RVc | 13 (44.8) | 25 (38.5) | … | … |
| Human EVc | 1 (3.4) | 6 (9.2) | … | … |
| CoVc | 3 (10.3) | 9 (13.8) | … | … |
| RSV Ac | 0 (0) | 1 (1.5) | … | … |
| RSV Bc | 4 (13.8) | 1 (1.5) | … | … |
| Human MPVc | 5 (17.2) | 15 (23.1) | … | … |
| Total viruses detected | 29 | 65 | … | … |
| Multiple infection | RV + MPV | RV + EV | … | … |
| RSV B + MPV | RV + CoV | … | … | |
| RSV B + MPV | CoV + MPV | … | … | |
| … | RSVA + RV | … | … | |
| … | FluA + MPV | … | … |
CoV = coronavirus; EV = enterovirus; FluA = influenza A; MPV = metapneumovirus; PCR = polymerase chain reaction; RSV = respiratory syncytial virus; RV = rhinovirus. See Table 1 legend for expansion of other abbreviations.
a
No. (%), χ2 test, RR.
b
IRR, Poisson regression adjusted for atopy, parity, and BMI.
c
No. (% of all viruses detected).