Table 2. Quality assessment of included studies based on NOS checklist.
| Study & Ref | Selection (Maximum of four star) | Comparability (maximum two star) | Outcome assessment (Maximum of three stars) | Quality | Exposures (Meta-analysed) |
|---|---|---|---|---|---|
| Birmeta, K et al | **** | ** | *** | High |
Maternal literacy- No schooling- R, Schooling- 2.65(1.08–6.49) Age at last birth—15-19-2.04(0.33–12.74), > = 20- R, Marital status—Married—1.07 (0.40–2.84), Others (divorced, widowed, never married)- R, Parity 1-4-0.81(0.32–2.06), >5 –R, Pregnancy intention- Yes- 2.94(1.15–7.53), No–R |
| Abosse, Z et al | ** | ** | ** | Low | Maternal education—No education—R, Primary school and above- 0.68(0.13–3.58); Residence- Urban-0.39(0.13–1.17), Rural-R |
| Amentie M et al | *** | ** | ** | High | Educational status- Illiterate–R, Literate 3.24(1.84–5.72), Place of residence- Urban -3.70(0.83–16.43), Rural-R |
| Melaku, Y. A et al | *** | ** | **** | High | Maternal educational status—No education -R, Educated -1.62(1.25–2.10), Residence- Urban -2.20(1.25–3.87), Rural-R; Age (Years)– 15-19-0.50(0.40–0.63), > = 20-R, Marital status- Married-1.45(0.87–2.42), Others (Single, dissolved)- R |
| Dutamo, Z et al | *** | ** | ** | High | Mother’s education—No education- R, Primary and above -1.68(0.96–2.94), Husband education—No education- R, Primary and above -1.52(0.88–2.62), Age group of women- 15-19- 1.1 (0.30, 4.06), > = 20-R; Parity- Parity 1–4 2.62(1.56–4.40), Parity >4 –R; Pregnancy intention- Intended -1.90(1.01–3.59), Unintended–R |
| Jira C and Belachew T | ** | * | ** | Low | Pregnancy intention–Yes-1.18(0.31–4.52), No-R |
| Girmay M & Berhane Y | *** | ** | ** | High | Maternal education—Education-1.32(0.49–3.58), No education-R, Residence- Urban- 1.01(0.04–27.06), Rural-R, Husband education-Education- 1.61 (0.60, 4.35), No education- R, |
| Regassa N | *** | * | ** | Low | Women’s literacy status- Literate-1.39(1.01–1.92), Illiterate–R, Pregnancy reaction- Wanted-2.17(1.56–3.02), Unwanted-R |
| Tarekegn SM et al | **** | ** | ** | High | Educational status- No education–R, Primary and above—2.39(1.72–3.33), Residence- Urban 2.3(1.81–2.92), Rural-R, Husband education- No education–R, Primary and above -1.60(1.36–1.88); Age- 15-19- 0.80(0.60, 1.28), > = 20-R, Marital status- Others(Never married, Divorced/separated/widowed)- R, Married-0.9(0.55–1.46), Parity– 1–4–0.83(0.66–1.04), > = 5 –R |
| Tewodros B et al | *** | ** | ** | High | Educational Status of women- Illiterate–R, Primary and above-3.90(2.27–6.71), Residence- Urban-2.11(1.01–4.42), Rural-R, Pregnancy- Planned-4.14(2.18–7.86), Unplanned-R |
| Tsegaye Y et al | *** | ** | *** | High | Education- No Education-R, Primary school and above- 1.45(1.05–2.00); Marital status- Others(Single or widowed, Divorced)–R, Married-2.57(1.44–4.58), Parity- 1-4-R, 5-7-1.16(0.88–1.55), 8-11-1.28(0.87–1.88) |
| Tura G | *** | * | ** | Low | Place of residence- Urban- 1.60(0.99–2.58), Rural- R; Educational status- No education- R, Educated– 6.25(1.49–26.27) |
| Worku AG et al | *** | ** | *** | High | Mother’s education- No education R, Primary and above- 1.26(0.98–1.62);, Husband education—No education R, Primary above- 1.28(1.03–1.60), Pregnancy wontedness- Wanted-1.27(0.82–1.96), Unwanted-R |
| Zelalem, AD et al | *** | * | *** | High | Educ. Respondent- Illiterate (RC)-R, Primary and above- 2.59(1.09–6.15); Residence—Urban -5.46(1.13–26.29), Rural-R, |
| Fekede B & Gebremariam A | ** | * | ** | Low | Age in years—15-19- 2.74(1.38–5.43), > = 20-R, Marital status—Others(Single or widowed, Divorced)–R, Married-0.74(0.42–1.31, Parity: 1-4-1.75(0.50–6.15), >4-R |