Table 3.
factors associated with repeated adolescent pregnancies in Tanzania, 2004/2005 to 2015/2016
| Variables | Total | Repeated n (%) | CPR* (95%CI) | p-value | APR** (95% CI) | p-value |
|---|---|---|---|---|---|---|
| Women age | ||||||
| 15-17 | 832 | 64 (7.7) | 1 | 1 | ||
| 18-19 | 1932 | 424 (22.0) | 2.87 (1.90, 4.35) | <0.001 | 2.37 (1.58, 3.55) | <0.001 |
| Women education level | ||||||
| No education | 596 | 159 (26.7) | 1 | 1 | ||
| Primary | 1942 | 322 (16.6) | 0.48 (0.39, 0.80) | <0.001 | 0.78 (0.58, 1.04) | 0.064 |
| ≥ secondary | 226 | 7 (3.1) | 0.12 (0.06, 0.25) | <0.001 | 0.22 (0.09, 0.51) | <0.001 |
| Household wealth index | ||||||
| Poorest | 581 | 145 (25.0) | 1 | 1 | ||
| Poorer | 661 | 135 (20.4) | 0.82 (0.59, 1.13) | 0.217 | 1.11 (0.55, 2.26) | 0.766 |
| Middle | 558 | 89 (15.9) | 0.64 (0.45, 0.90) | 0.011 | 1.29 (0.65, 2.60) | 0.464 |
| Richer | 533 | 77 (14.4) | 0.58 (0.39, 0.85) | 0.006 | 1.07 (0.52, 2.19) | 0.855 |
| Richest | 431 | 42 (9.8) | 0.39 (0.24, 0.63) | <0.001 | 1.15 (0.58, 2.29) | 0.690 |
| Marital status | ||||||
| Never in union | 749 | 48 (6.4) | 1 | 1 | ||
| Married/cohabiting | 1858 | 408 (22.0) | 3.44 (2.07, 5.72) | <0.001 | 2.23 (1.42, 3.50) | <0.001 |
| Widowed/divorced/ separated | 157 | 32 (20.1) | 3.14 (1.63, 6.00) | 0.001 | 1.96 (1.07, 3.60) | 0.030 |
| Place of residence | ||||||
| Urban | 625 | 65 (10.4) | 1 | 1 | ||
| Rural | 2139 | 422 (19.8) | 1.89 (1.32, 2.71) | <0.001 | 1.02 (0.64, 1.62) | 0.932 |
| Geographical zones | ||||||
| Western | 362 | 78 (21.5) | 1 | 1 | ||
| Northern | 208 | 32 (15.6) | 0.73 (0.40, 1.30) | 0.282 | 1.22 (0.67, 2.23) | 0.516 |
| Central | 264 | 43 (16.3) | 0.76 (0.46, 1.26) | 0.285 | 0.88 (0.53, 1.46) | 0.629 |
| Southern highlands | 149 | 14 (9.2) | 0.43 (0.21, 0.86) | 0.017 | 0.64 (0.28, 1.48) | 0.296 |
| Southern | 148 | 14 (10.0) | 0.47 (0.26, 0.84) | 0.012 | 0.64 (0.34, 1.23) | 0.183 |
| South west | 294 | 45 (15.6) | 0.72 (0.46, 1.14) | 0.157 | 1.21 (0.71, 2.08) | 0.485 |
| Lake zone | 988 | 210 (21.4) | 0.99 (0.71, 1.38) | 0.970 | 1.18 (0.82, 1.68) | 0.374 |
| Eastern | 322 | 42 (13.2) | 0.61 (0.36, 1.03) | 0.064 | 1.10 (0.63, 1.90) | 0.737 |
| Zanzibar | 29 | 7 (24.9) | 1.16 (0.76, 1.75) | 0.493 | 2.29 (1.37, 3.86) | 0.002 |
| Modern contraceptive use | ||||||
| No | 2315 | 435 (18.8) | 1 | 1 | ||
| Yes | 449 | 53 (11.8) | 0.63 (0.43, 0.92) | 0.016 | 0.52 (0.34, 0.81) | 0.004 |
| Age at first sex | ||||||
| <15 | 622 | 168 (27.0) | 1.97 (1.53, 2.55) | <0.001 | 1.80 (1.40, 2.31) | <0.001 |
| ≥15 | 1684 | 230 (13.7) | 1 | 1 | ||
| Place of delivery at first pregnancy | ||||||
| Health facility | 1311 | 217 (16.6) | 1 | 1 | ||
| Home | 776 | 267 (34.4) | 2.07 (1.67, 2.56) | <0.001 | 1.36 (1.03, 1.78) | 0.028 |
| Number of ANC visits at first pregnancy | ||||||
| <4 | 1068 | 299 (28.0) | 1.54 (1.21, 1.96) | <0.001 | 1.28 (0.99, 1.64) | 0.057 |
| ≥4 | 1031 | 187 (18.2) | 1 | 1 | ||
| Age at first birth | ||||||
| <15 | 101 | 48 (48.2) | 1 | |||
| 15-17 | 1383 | 389 (28.1) | 0.58 (0.43, 0.79) | 0.001 | ||
| 18-19 | 627 | 50 (8.0) | 0.17 (0.10, 0.27) | <0.001 |
*
CPR: crude prevalence ratio: **APR: adjusted prevalence ratio: ANC antenatal care