Table 2.
Clinical Outcomes Among Pregnant Women With Pandemic 2009 Influenza A(H1N1) Illness Through August 21, 2009, United Statesa
| Outcome | No. (%) of Pregnant Women |
|---|---|
| All Pregnant Women (n = 788) | |
| Hospital admission | |
| Yes | 509 (65.9) |
| No | 263 (34.1) |
| Unknown/missing | 16 |
| Maternal death | |
| Yes | 30 (4.3) |
| No | 662 (95.7) |
| Unknown/missing | 96 |
| Preterm deliveryb | |
| Yes (<37 wk gestation) | 51 (30.2) |
| No (≥37 wk gestation) | 118 (69.8) |
| Delivery type | |
| Spontaneous abortion | 8 (1.4) |
| Therapeutic abortion | 4 (0.7) |
| Vaginal delivery | 79 (13.5) |
| Cesarean delivery | 109 (18.6) |
| Delivered, type unknown or estimated delivery date on or before November 6, 2009 | 263 (45.0) |
| Not yet delivered or estimated delivery date after November 6, 2009 | 122 (20.9) |
| Unknown/missing | 203 |
| Among Hospitalized Pregnant Women (n = 509) | |
| Hospital length of stay, d | |
| Median (range) | 3 (1–73) |
| Unknown/missing | 122 |
| Admission to intensive care unit | |
| Yes | 115 (24.7) |
| No | 350 (75.3) |
| Unknown/missing | 44 |
| Mechanical ventilation | |
| Yes | 77 (18.8) |
| No | 332 (81.2) |
| Unknown/missing | 100 |
a
Percentages are based on women with complete information in the respective categories.
b
Among live births with known gestational age at delivery (n=169).