Table 1.
Findings from the univariate analyses of our Malawi data for the five different regression models
| Variables | Type of regression model
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Linear
|
Log med
|
Log plan
|
LMUP all
|
LMUP 3
|
||||||
| β-Coefficient | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Mother’s age, years | 18–29 as baseline | |||||||||
| 15–17 | −1.03 | −1.46 to −0.59 | 0.63 | 0.50 to 0.78 | 0.79 | 0.64 to 0.99 | 0.66 | 0.54 to 0.80 | 0.61 | 0.50 to 0.76 |
| ≥30 | −1.31 | −1.59 to −1.03 | 0.54 | 0.47 to 0.62 | 0.52 | 0.45 to 0.61 | 0.57 | 0.50 to 0.64 | 0.56 | 0.49 to 0.64 |
| Father’s age, years | 20–29 as baseline | |||||||||
| 15–19 | −2.02 | −2.69 to −1.35 | 0.38 | 0.27 to 0.55 | 0.46 | 0.32 to 0.66 | 0.43 | 0.32 to 0.58 | 0.38 | 0.27 to 0.53 |
| ≥30 | −0.98 | −1.23 to −0.73 | 0.62 | 0.54 to 0.70 | 0.58 | 0.51 to 0.66 | 0.65 | 0.58 to 0.72 | 0.64 | 0.57 to 0.71 |
| Mother’s education level, years | 0.15 | 0.11 to 0.18 | 1.07 | 1.04 to 1.09 | 1.06 | 1.04 to 1.09 | 1.07 | 1.05 to 1.09 | 1.06 | 1.04 to 1.08 |
| Father’s education level, years | 0.07 | 0.03 to 0.10 | 1.02 | 1.01 to 1.05 | 1.03 | 1.01 to 1.05 | 1.03 | 1.02 to 1.05 | 1.03 | 1.01 to 1.04 |
| Marital status | Married as baseline | |||||||||
| Unmarried | −3.40 | −3.89 to −2.97 | 0.16 | 0.12 to 0.21 | 0.19 | 0.14 to 0.26 | 0.24 | 0.20 to 0.29 | 0.18 | 0.15 to 0.23 |
| Number of live children | −0.53 | −0.60 to −0.47 | 0.77 | 0.74 to 0.80 | 0.74 | 0.72 to 0.77 | 0.79 | 0.76 to 0.81 | 0.78 | 0.75 to 0.80 |
| Primigravida (yes) | 1.43 | 1.17 to 1.69 | 1.92 | 1.68 to 2.20 | 2.59 | 2.26 to 2.97 | 2.02 | 1.79 to 2.27 | 2.16 | 1.9 to 2.46 |
| No | Baseline | |||||||||
| Intergestational period | Baseline | |||||||||
| <2 years | ||||||||||
| 2–3 years | 1.44 | 1.10 to 1.79 | 1.99 | 1.66 to 2.40 | 1.73 | 1.43 to 2.10 | 1.86 | 1.59 to 2.18 | 1.90 | 1.60 to 2.24 |
| 3–4 years | 2.04 | 1.64 to 2.44 | 2.94 | 2.37 to 3.65 | 2.27 | 1.82 to 2.82 | 2.39 | 1.99 to 2.88 | 2.36 | 1.94 to 2.87 |
| 4–5 years | 2.70 | 2.19 to 3.22 | 3.89 | 2.93 to 5.17 | 2.64 | 2.00 to 3.48 | 3.11 | 2.46 to 3.92 | 3.11 | 2.43 to 4.00 |
| >5 years | 2.55 | 2.04 to 3.06 | 3.71 | 2.81 to 4.90 | 2.84 | 2.16 to 3.72 | 2.92 | 2.31 to 3.68 | 3.10 | 2.41 to 3.99 |
| Socioeconomic status | Poorest 20% as baseline | |||||||||
| Second-poorest 20% | 0.35 | −0.03 to 0.74 | 1.16 | 0.96 to 1.41 | 1.1 | 0.9 to 1.33 | 1.15 | 0.97 to 1.36 | 1.16 | 0.97 to 1.38 |
| Middle 20% | 0.47 | 0.09 to 0.86 | 1.24 | 1.02 to 1.50 | 1.11 | 0.91 to 1.35 | 1.20 | 1.02 to 1.42 | 1.25 | 1.04 to 1.49 |
| Next-richest 20% | 0.74 | 0.35 to 1.12 | 1.39 | 1.15 to 1.69 | 1.31 | 1.08 to 1.59 | 1.40 | 1.18 to 1.65 | 1.37 | 1.14 to 1.64 |
| Richest 20% | 0.83 | 0.45 to 1.21 | 1.38 | 1.14 to 1.67 | 1.30 | 1.07 to 1.57 | 1.52 | 1.28 to 1.81 | 1.39 | 1.16 to 1.66 |
| Previous depression | None as baseline | |||||||||
| One/two for less than 2 weeks | −0.95 | −1.28 to −0.61 | 0.58 | 0.49 to 0.69 | 0.61 | 0.51 to 0.72 | 0.69 | 0.60 to 0.81 | 0.64 | 0.55 to 0.75 |
| One for more than 2 weeks | −1.93 | −2.29 to −1.57 | 0.36 | 0.30 to 0.44 | 0.41 | 0.33 to 0.50 | 0.45 | 0.38 to 0.53 | 0.44 | 0.37 to 0.52 |
| Both for more than 2 weeks | −2.23 | −3.30 to −1.16 | 0.30 | 0.16 to 0.54 | 0.37 | 0.20 to 0.68 | 0.38 | 0.24 to 0.62 | 0.45 | 0.27 to 0.73 |
| Distance to health facility (km) | No statistically significant differences in any model | |||||||||
| Gestation (months) | −0.10 | −0.18 to −0.02 | 0.95 | 0.91 to 0.99 | 0.93 | 0.90 to 0.97 | 0.96 | 0.93 to 1.0 | 0.95 | 0.91 to 0.98 |
| Religion | No statistically significant differences in any model | |||||||||
| Tribe | In all models, the Senga tribe was the only one statistically significantly different to baseline (Chewa) | |||||||||
Abbreviations: LMUP, London Measure of Unplanned Pregnancy; CI, confidence interval.