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Table 2 Summary statistics used in the model. Summary statistics by region. For each country-specific variable in the model, the number of MMR estimates, the median and the interquartile range by region are shown*.

From: National estimates for maternal mortality: an analysis based on the WHO systematic review of maternal mortality and morbidity

Variable Africa Asia Latin America & Caribbean Developed Countries
  N Median (1st – 3rd Q) N Median (1st – 3rd Q) N Median (1st – 3rd Q) N Median (1st – 3rd Q)
Maternal Mortality Ratio 35 498 (238 – 729) 36 37 (18 – 275) 27 71 (41 – 161) 43 7 (4 – 14)
Skilled birth attendant (%) 34 47.1 (39.0 – 61.8) 34 95.1 (56.4 – 98.4) 27 87.6 (65.0 – 98.2) 43 98.0 (98.0 – 99.1)
Infant mortality rate 35 86 (62 – 110) 35 37.0 (16 – 72) 27 30 (18 – 41) 43 7 (5 – 12)
Health expenditure per capita 35 47 (32 – 163) 34 169 (85 – 390) 26 352 (193 – 533) 43 1512 (454 – 2358)
Population growth rate 35 2.5 (2.0 – 2.8) 35 2.0 (1.2 – 2.6) 27 1.7 (0.9 – 2.1) 43 0.2 (-0.2 – 0.6)
Probability of death between 15 and 59 (male, per 1000) 35 402 (262 – 482) 34 143 (98 – 208) 26 128 (97 – 150) 43 67 (59 – 97)
Female net primary school enrolment ratio 35 69.0 (45.0 – 94.0) 32 90.0 (75.5 – 93.5) 26 92.5 (88.0 – 100.0) 42 97.0 (92.0 – 100.0)
Urban population (%) 35 33.4 (27.5 – 48.9) 35 55.8 (27.6 – 78.7) 27 65.4 (56.1 – 75.3) 43 68.5 (59.4 – 83.3)
Contraceptive-use prevalence rate 35 26 (12 – 40) 33 55 (39 – 66) 23 62 (53 – 69) 35 74 (58 – 77)
  1. * Difference among regions for all variables was statistically significant (p < 0.001), Kruskal-Wallis.
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