Table 1. Cesarean section rates classified by years and regions of Thailand.
| Cesarean section rates (%) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Year | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | p -value for trend |
| Region | ||||||||||
| 1 | 22.8 | 22.0 | 23.5 | 24.0 | 24.3 | 25.5 | 26.3 | 28.3 | 29.5 | <0.001 |
| 2 | 23.2 | 24.6 | 26.8 | 26.8 | 29.3 | 30.7 | 32.3 | 31.2 | 30.5 | <0.001 |
| 3 | 26.1 | 25.1 | 28.3 | 28.8 | 30.4 | 33.1 | 34.4 | 35.7 | 35.3 | <0.001 |
| 4 | 24.8 | 26.1 | 27.1 | 26.7 | 30.2 | 32.0 | 32.7 | 31.5 | 32.4 | <0.001 |
| 5 | 24.6 | 24.9 | 26.9 | 27.6 | 29.0 | 31.0 | 32.6 | 32.7 | 33.9 | <0.001 |
| 6 | 21.7 | 22.2 | 23.9 | 24.2 | 25.2 | 26.5 | 27.2 | 28.2 | 29.0 | <0.001 |
| 7 | 20.1 | 21.1 | 23.9 | 24.5 | 27.5 | 29.2 | 31.5 | 32.3 | 34.4 | <0.001 |
| 8 | 18.3 | 19.0 | 21.3 | 22.4 | 23.8 | 25.4 | 27.3 | 28.0 | 30.0 | <0.001 |
| 9 | 21.4 | 21.3 | 23.8 | 25.0 | 27.1 | 27.7 | 30.2 | 30.9 | 32.6 | <0.001 |
| 10 | 20.6 | 21.9 | 24.6 | 25.1 | 26.6 | 29.5 | 30.3 | 32.7 | 34.4 | <0.001 |
| 11 | 27.1 | 26.8 | 29.3 | 31.5 | 32.9 | 35.4 | 37.6 | 36.4 | 37.5 | <0.001 |
| 12 | 21.0 | 21.0 | 23.2 | 23.2 | 23.5 | 24.4 | 25.5 | 25.7 | 26.7 | <0.001 |
| 13 | 29.3 | 29.4 | 31.8 | 34.0 | 35.4 | 38.3 | 40.3 | 39.2 | 36.6 | 0.001 |
| Average | 23.2 | 23.5 | 25.7 | 26.4 | 28.1 | 29.9 | 31.4 | 31.7 | 32.5 | <0.001 |
| (95% CI) | (21.3–25.0) | (21.7–25.2) | (23.9–27.5) | (24.4–28.5) | (25.9–30.3) | (27.4–32.4) | (28.8–34.0) | (29.5–34.0) | (30.6–34.5) | |
Abbreviation: CI, confidence interval.