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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.