TABLE 3. Bivariate and Multivariate Logistic Regression Analysis on Trends in the Cesarean Delivery Rate, Among All Mothers and Stratified by Place of Delivery, Birth Weight, and Birth Multiplicity According to Year of Survey.
| No. (%) | OR (95% CI) | aOR (95% CI) | |
| Among All Mothers | |||
| 2002 | 629 (18.2) | 1.00 | 1.00 |
| 2007 | 1267 (20.1) | 1.13 (1.01–1.25)* | 1.13 (1.01–1.26)* |
| 2012 | 1929 (30.3) | 1.95 (1.76–2.16)*** | 1.90 (1.71–2.11)*** |
| By Place of Delivery | |||
| Public Sector | |||
| 2002 | 375 (16.8) | 1.00 | 1.00 |
| 2007 | 768 (19.0) | 1.16 (1.01–1.33)* | 1.15 (1.00–1.33)* |
| 2012 | 1242 (29.4) | 2.05 (1.80–2.34)*** | 1.99 (1.74–2.28)*** |
| Private Sector | |||
| 2002 | 254 (20.8) | 1.00 | 1.00 |
| 2007 | 499 (22.0) | 1.07 (0.90–1.27) | 1.06 (0.88–1.26) |
| 2012 | 687 (32.2) | 1.80 (1.53–2.12)*** | 1.70 (1.43–2.02)*** |
| By Birth Weight | |||
| Normal | |||
| 2002 | 428 (16.3) | 1.00 | 1.00 |
| 2007 | 890 (18.1) | 1.13 (0.99–1.28) | 1.11 (0.98–1.26) |
| 2012 | 1395 (28.4) | 2.03 (1.80–2.29)*** | 1.93 (1.71–2.19)*** |
| Low/High | |||
| 2002 | 201 (24.2) | 1.00 | 1.00 |
| 2007 | 377 (27.1) | 1.17 (0.96–1.42) | 1.13 (0.93–1.39) |
| 2012 | 534 (36.6) | 1.81 (1.50–2.20)*** | 1.73 (1.42–2.10)*** |
| By Birth Multiplicity | |||
| Singleton Birth | |||
| 2002 | 582 (17.3) | 1.00 | 1.00 |
| 2007 | 1194 (19.3) | 1.15 (1.03–1.28)* | 1.14 (1.02–1.27)* |
| 2012 | 1838 (29.5) | 2.01 (1.81–2.23)*** | 1.92 (1.72–2.13)*** |
| Multiple Birth | |||
| 2002 | 48 (60.0) | 1.00 | 1.00 |
| 2007 | 73 (589.3) | 0.99 (0.55–1.75) | 0.98 (0.49–1.95) |
| 2012 | 92 (65.7) | 1.28 (0.72–2.26) | 1.29 (0.64–2.58) |
Abbreviations: aOR, adjusted odds ratio (for all covariates under analysis); CI, confidence interval; OR, odds ratio.
P value for the trend was obtained by entering the survey year as a continuous variable.
*P< .05; *** P< .001.