Table 2. A subgroup analysis of the association between short interpregnancy interval and preterm birth in Ethiopia.
| Study | OR | 95% CI | Weight % |
|---|---|---|---|
| Amhara | |||
| Woday et al36 | 1.449 | 0.754 to 2.784 | 9.97 |
| Mekuriyaw et al21 | 1.661 | 0.858 to 3.215 | 9.76 |
| Exp. | 1.550 | 0.975 to 2.466 | |
| Harari | |||
| Zewde42 | 1.191 | 0.707 to 2.007 | 15.64 |
| Exp. | 1.191 | 0.707 to 2.007 | |
| Oromia | |||
| Abaraya M et al22 | 1.429 | 1.021 to 2.001 | 37.57 |
| Exp. | 1.429 | 1.021 to 2.001 | |
| SNNP | |||
| Fetene et al28 | 1.646 | 0.874 to 3.100 | 10.62 |
| Exp. | 1.646 | 0.874 to 3.100 | |
| Tigray | |||
| Aregawi et al.37 | 2.570 | 1.179 to 5.601 | 7.00 |
| Brhane et al38 | 2.885 | 1.354 to 6.146 | 7.43 |
| Teklay et al27 | 1.085 | 0.253 to 4.648 | 2.01 |
| Exp. | 2.437 | 1.466 to 4.052 | |
| Overall | |||
| Exp. | 1.564 | 1.273 to 1.923 | |
SNNP, Southern Nations, Nationalities and Peoples.