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. 2022 Oct 10;22:416. doi: 10.1186/s12905-022-01986-6

Table 4.

Regression analysis of socio-demographic characteristics for women aged 20–24 years who experienced pregnancy during adolescence in 2003, 2008–2009, and 2014

2003 (N = 1,691) 2008/2009 (N = 1,715) 2014 (N = 5,735)
COR (95% CI) AOR (95% CI) COR (95% CI) AOR (95% CI) COR (95% CI) AOR (95% CI)
Residence
  Urban 0.52(0.39–0.68) 1.24(0.85–1.82) 0.43(0.28–0.65) 0.73(0.44–1.20) 0.54(0.46–0.63) 1.01(0.83–1.24)
  Rural Ref Ref Ref Ref Ref Ref
Education
  No education Ref Ref Ref Ref Ref Ref
  Primary incomplete 1.66(1.08–2.54) 1.92(1.12–3.29) 1.04(0.63–1.73) 0.98(0.58–1.66) 1.67(1.27–2.19) 1.88(1.33–2.66)
  Primary complete 0.64(0.41–0.99) 1.08(0.61–1.92) 0.53(0.35–0.82) 0.59(0.34–1.04) 0.87(0.67–1.13) 1.19(0.84–1.68)
  Secondary + 0.25(0.16–0.39) 0.61(0.34–1.11) 0.15(0.09–0.23) 0.28(0.15–0.50) 0.24(0.19–0.31) 0.50(0.36–0.71)
Marital status
  Never married Ref Ref Ref Ref Ref Ref
  Married/living together 9.22(6.88–12.36) 6.53(4.85–8.80) 7.79(5.35–11.36) 5.33(3.69–7.69) 7.05(5.81–8.55) 5.14(4.19–6.29)
  Div/Sep/Widowed 7.86(4.66–13.27) 4.89(2.87–8.33) 11.76(5.98–23.12) 8.67(4.30-17.48) 8.80(6.18–12.53) 6.13(4.26–8.83)
Religion
  Roman catholic 0.34(0.15–0.74) 0.52(0.22–1.26) 0.45(0.21–0.96) 1.27(0.39–4.13) 0.26(0.14–0.47) 0.84(0.47–1.49)
  Protestant 0.36(0.17–0.77) 0.63(0.27–1.44) 0.42(0.20–0.90) 1.23(0.39–3.94) 0.32(0.18–0.57) 0.81(0.47–1.40)
  Muslim 0.53(0.22–1.24) 0.52(0.20–1.32) 0.57(0.26–1.26) 0.81(0.27–2.38) 0.32(0.18–0.59) 0.61(0.34–1.10)
  No religion Ref Ref Ref Ref Ref Ref
  Other 0.20(0.01–3.13) 0.23(0.01–5.57) na na
Wealth quintile
  Lowest 4.24(2.90–6.21) 2.49(1.46–4.22) 3.83(2.37–6.20) 1.08(0.61–1.92) 4.52(3.56–5.74) 1.97(1.43–2.72)
  Second 2.75(1.90–3.99) 1.80(1.13–2.88) 3.01(1.72–5.30) 1.42(0.73–2.76) 3.58(2.84–4.52) 1.86(1.39–2.50)
  Middle 2.14(1.49–3.05) 1.61(1.04–2.50) 2.32(1.45–3.72) 1.08(0.61–1.88) 2.60(2.04–3.33) 1.90(1.42–2.55)
  Fourth 1.36(0.97–1.90) 1.25(0.80–1.95) 1.71(1.03–2.85) 1.02(0.59–1.74) 1.66(1.29–2.14) 1.30(0.98–1.71)
  Highest Ref Ref Ref Ref Ref Ref
Pseudo R2 0.205 0.212 0.186

Notes: AOR: adjusted odds ratio; OR: odds ratio

Adjusted for: Residence, education, marital status, religion and wealth quintile

Multicollinearity test was done between wealth and education, the variance inflation factor indicated no collinearity (variance inflation factor < 10)

Ref: Reference category

Div: Divorced

Sep: Separated