|
# PTB n(%) |
Term |
Total |
OR
[95% CI] |
In pregnancy |
4,787 (7.5) |
59,030 |
63,817 |
1.33 [1.29,
1.37] |
1st trimester |
2142 (8.0) |
24,736 |
26,878 |
1.42 [1.36, 1.48] |
2nd trimester |
2630 (8.2) |
29,286 |
31,916 |
1.47 [1.41, 1.53] |
1st and 2nd trimester |
553
(9.2) |
5,442 |
5,995 |
1.66 [1.52, 1.81] |
No BV & |
|
|
|
|
no medication |
125,815 (5.7) |
2,061,443 |
2,187,258 |
|