No influenza virus circulating (Sept. 2004–Jan. 2005) | n = 108 | n = 103 | |
Gestational age at vaccination, wk | 31.9 (31.6–32.3) | 31.9 (31.5–32.2) | 0.8 |
Gestational age at delivery, wk | 39.3 (38.9–39.6) | 39.4 (39.1–39.8) | 0.6 |
Interval between vaccination and birth, d | 51.5 (48.2–54.8) | 52.5 (49.3–55.8) | 0.7 |
Age, yr | 25.0 (24.4–25.8) | 25.5 (24.6–26.3) | 0.4 |
Parity | 1.1 (1.0–1.3) | 1.2 (1.1–1.4) | 0.4 |
Height, cm | 152.5 (151.2–153.8) | 153.1 (151.9–154.1) | 0.5 |
Weight,* kg | 56.2 (54.4–58.0) | 56.5 (54.8–58.3) | 0.8 |
Influenza virus circulating (Feb. 2005–Oct. 2005) | n = 58 | n = 58 | |
Gestational age at vaccination, wk | 30.5 (30.1–31.0) | 31.5 (31.0–32.0) | 0.01 |
Gestational age at delivery, wk | 39.7 (39.3–40.1) | 39.7 (39.3–40.1) | 0.9 |
Interval between vaccination and delivery, d | 63.9 (59.8–68.0) | 57.4 (53.8–61.1) | 0.02 |
Age, yr | 24.9 (23.7–26.1) | 24.7 (23.7–25.7) | 0.8 |
Parity | 1.3 (1.0–1.5) | 0.9 (0.7–1.1) | 0.1 |
Height, cm | 153.0 (151.6–154.5) | 152.9 (151.6–154.2) | 0.9 |
Weight,* kg | 54.0 (51.4–56.7) | 53.9 (51.8–55.9) | 0.9 |