Table 1 . C-section rates, crude odds ratio, adjusted odds ratio and adjusted population attributable risks (aPAR %) according to socioeconomics, demographics and health service factors in Southwest Iran, 2012 .
| Risk factors | CS rate (%) | n | Crude odds ratio (95%CI) | Adjusted odds ratio (95%CI) | PAR% |
| Get local health care | |||||
| Private clinics | 76.72 | 1435 | 2.72 (2.36- 3.14) | 1.85 (1.56- 2.20) | 19.2 |
| Governmental clinics | 54.74 | 2782 | 1 | 1 | |
| Insurance Status | |||||
| Yes | 62.31 | 3906 | 1.05 (0.83- 1.33) | * | |
| No | 61.09 | 311 | 1 | * | |
| Supplementary insurance | |||||
| Yes | 72.06 | 1199 | 1.84 (1.59- 2.13) | 1.19 (0.99- 1.43) | 5.1 |
| No | 58.32 | 3018 | 1 | 1 | |
| Maternal age | |||||
| >20 | 51.80 | 388 | 1 | 1 | |
| 20-35 | 63.07 | 3550 | 1.58 (1.28- 1.96) | 1.21 (0.94- 1.57) | 14.75 |
| 35+ | 65.95 | 184 | 1.80 (1.31- 2.47) | 1.77 (1.21-2.59) | 3.04 |
| Age of Marriage | |||||
| >20 | 56.76 | 1989 | 1 | 1 | |
| 20-25 | 65.64 | 1301 | 1.45 (1.25-1.68) | 1.10 (0.92- 1.32) | 2.95 |
| 25+ | 69.15 | 927 | 1.70 (1.44-2.01) | 1.29 (1.05- 1.60) | 5.49 |
| Place of Birth | |||||
| Urban | 66.05 | 3190 | 1.91 (1.66- 2.21) | 1.30 (1.10- 1.54) | 18.53 |
| Village | 50.34 | 1027 | 1 | 1 | |
| Family Income | |||||
| 1st quartile | 50.22 | 900 | 1 | 1 | |
| 2nd quartile | 57.95 | 987 | 1.93 (1.60- 2.32) | 1.84 (1.52- 2.25) | 11.90 |
| 3rd quartile | 66.75 | 1173 | 2.10 (1.76- 2.51) | 1.90 (1.57- 2.31) | 16.9 |
| 4th quartile | 75.83 | 509 | 8.19 (6.12- 10.97) | 6.95 (5.12- 9.42) | 15.06 |
| Maternal Education | |||||
| Lower High School | 50.06 | 1652 | 1 | 1 | |
| High School | 65.94 | 1568 | 1.93 (1.67- 2.22) | 1.12 (0.93- 1.35) | 4.22 |
| College education | 76.53 | 997 | 3.25 (2.72- 3.87) | 1.36 (1.03- 1.79) | 7.69 |
| Education of husband | |||||
| Lower High School | 51.60 | 1845 | 1 | 1 | |
| High School | 67.22 | 1458 | 1.92 (1.66-2.21) | 1.36 (1.14- 1.63) | 9.88 |
| College education | 75.71 | 914 | 2.92 (2.45- 3.48) | 1.34 (1.05- 1.72) | 6.69 |
| Occupation | |||||
| Home only | 60.34 | 3797 | 1 | 1 | |
| Also outside the home | 79.29 | 420 | 2.51 (1.96- 3.21) | 1.16 (0.84- 1.60) | 1.75 |
| Ethnicity | |||||
| Turk | 54.32 | 370 | 0.69 (0.55- 0.85) | 0.77 (0.60- 0.99) | -.2.27 |
| Lur | 64.69 | 388 | 1.06 (0.85- 1.32) | * | |
| Kurd | 53.85 | 65 | 0.67 (0.41- 1.11) | * | |
| Persian** | 63.22 | 3331 | 1 | 1 | |
| Arab | 49.21 | 63 | 0.56 (0.34- 0.92) | 0.91 (0.51- 1.60) | -0.11 |
*Since these variables have no significant association with outcome in form crude analysis, so in multivariate analysis were not entered the model.**Majority of the target population