Table 1 Background characteristics. Background characteristics of the 2725 women included in the prevalence estimate. ,CS: Cesarean section. N/A: Not Applicable. *Antibiotic treatment immediately prior to CS due to either intrapartum fever, prolonged rupture of membranes (> 18/24 hours), preterm prelabor rupture of membranes, preterm labor, group B streptococcus (GBS) urinary tract infection, earlier GBS urinary tract infection, urinary tract infection by another bacterial agent, any prelabor diagnosed infection, or previous delivery of an infant with GBS. ** Smoking in 3. Trimester
Total | Intrapartum antibiotics∗ | No intrapartum antibiotics | ||||
|---|---|---|---|---|---|---|
N (%) | N | % | N | % | ||
Total | 2725 | 619 | 22.7% | 2106 | 77.3% | |
Smoking** | ||||||
Yes | 260 (9.5%) | 47 | 7.6% | 213 | 10.1% | |
No | 2332 (85.6%) | 531 | 85.8% | 1802 | 85.6% | |
Quit smoking | 132 (4.8%) | 41 | 6.6% | 91 | 4.3% | |
Body Mass Index (kg/m2) | ||||||
< 18.5 | 91 (3.4%) | 12 | 2.0% | 79 | 3.8% | |
18.5-24.99 | 1517 (56.3%) | 341 | 55.6% | 1176 | 56.5% | |
25-29.99 | 642 (23.8%) | 136 | 22.2% | 506 | 24.3% | |
≥ 30 | 443 (16.5%) | 124 | 20.2% | 319 | 15.3% | |
N/A | 32 (1.2%) | 6 | 1.0% | 26 | 1.2% | |
Maternal age (years) | ||||||
< 30 | 1016 (37.3%) | 262 | 42.3% | 754 | 35.8% | |
30-39.99 | 1532 (56.2%) | 323 | 52.2% | 1209 | 57.4% | |
≥ 40 | 177 (6.5%) | 34 | 5.5% | 143 | 6.8% | |
CS grade (time to delivery) | ||||||
1. Grade (< 15 min) | 217 (8.0%) | 30 | 4.8% | 187 | 8.9% | |
2. Grade (< 30 min) | 1067 (39.2%) | 287 | 46.4% | 780 | 37.0% | |
3. Grade (< 60 min) | 1299 (47.7%) | 274 | 44.3% | 1025 | 48.7% | |
N/A | 142 (5.2%) | 28 | 4.5% | 114 | 5.4% | |
Previous CS | ||||||
Yes | 663 (24.3%) | 89 | 14.4% | 575 | 27.3% | |
No | 2049 (75.2%) | 527 | 85.1% | 1522 | 72.3% | |
N/A | 12 (0.4%) | 3 | 0.5% | 9 | 0.4% | |
Gestational Diabetes Mellitus | ||||||
Yes | 132 (4.8%) | 28 | 4.5% | 104 | 4.9% | |
No | 2593 (95.2%) | 591 | 95.5% | 2002 | 95.1% | |
Rupture of membranes | ||||||
Yes | 2184 (80.1%) | 584 | 94.3% | 1600 | 76.0% | |
No | 541 (19.9%) | 35 | 5.7% | 506 | 24.0% | |
Intrapartum fever | ||||||
Yes | 382 (14.0%) | 312 | 50.4% | 71 | 3.3% | |
No | 2343 (86.0%) | 307 | 49.6% | 2036 | 96.7% | |
Group B Streptococcus urinary tract infection | ||||||
Yes | 78 (2.9%) | 48 | 7.8% | 30 | 1.4% | |
No | 2647 (97.1%) | 571 | 92.2% | 2076 | 98.6% | |