Underweight percentage points (95% CI) n=96 surveys ‡ | Anaemia percentage points (95% CI) n=52 surveys§ | Anaemia pregnancy percentage points (95% CI) n=39–52 surveys¶ | Overweight percentage points (95% CI) n=96 surveys‡ | Obesity percentage points (95% CI) n=96 surveys‡ | ||||||
SSA | ||||||||||
Age | ||||||||||
15–19 years | 0.00 | (−0.02 to 0.05) | −0.46* | (−0.85 to −0.07) | −0.90* | (−1.52 to −0.29) | 0.23** | (0.15 to 0.31) | 0.03 | (−0.01 to 0.07) |
20–49 years | −0.19** | (−0.26 to −0.12) | −0.67** | (−1.06 to −0.28) | −0.79* | (−1.31 to −0.27) | 0.49** | (0.42 to 0.56) | 0.36** | (0.30 to 0.42) |
Residence | ||||||||||
Capital/largest city | −0.13** | (−0.20 to −0.06) | −0.62* | (−1.11 to −0.13) | −0.78 | (−1.67 to 0.11) | 0.31** | (0.20 to 0.42) | 0.47** | (0.39 to 0.55) |
Other Urban area | −0.19** | (−0.25 to −0.13) | −0.61** | (−0.96 to −0.26) | −0.92* | (−1.59 to −0.24) | 0.37** | (0.28 to 0.46) | 0.34** | (0.28 to 0.40) |
Rural area | −0.18** | (−0.24 to −0.12) | −0.65* | (−1.08 to −0.22) | −0.73* | (−1.24 to −0.23) | 0.35** | (0.29 to 0.41) | 0.16** | (0.12 to 0.20) |
Wealth | ||||||||||
Poorest (Q1) | −0.11* | (−0.22 to 0.00) | −0.50* | (−0.97 to −0.03) | −0.48 | (−1.02 to 0.07) | 0.22** | (0.15 to 0.28) | 0.06* | (0.03 to 0.09) |
Richest (Q5) | −0.15** | (−0.20 to −0.10) | −0.55* | (−0.90 to −0.19) | −0.97* | (−1.60 to −0.34) | 0.31** | (0.24 to 0.39) | 0.46** | (0.39 to 0.53) |
Education | ||||||||||
None | −0.09 | (−0.19 to 0.01) | −0.60* | (−1.05 to −0.15) | −0.84* | (−1.56 to −0.13) | 0.39** | (0.28 to 0.50) | 0.22** | (0.16 to 0.28) |
Primary | −0.14** | (−0.21 to −0.08) | −0.58* | (−1.01 to −0.15) | −0.70* | (−1.23 to −0.17) | 0.33** | (0.24 to 0.41) | 0.27** | (0.21 to 0.33) |
Secondary or more | −0.17** | (−0.24 to −0.10) | −0.55* | (−0.94 to −0.16) | −0.36 | (−1.04 to 0.31) | 0.06 | (−0.04 to 0.16) | 0.15** | (0.07 to 0.23) |
Total | −0.14** | (−0.17 to −0.11) | −0.56** | (−0.66 to −0.47) | −0.74** | (−0.89 to −0.60) | 0.34** | (0.30 to 0.39) | 0.24** | (0.20 to 0.27) |
ESA | ||||||||||
Age | ||||||||||
15–19 years | 0.00 | (−0.05 to 0.05) | −0.37 | (−0.96 to 0.22) | −0.61 | (−1.37 to 0.15) | 0.21** | (0.12 to 0.30) | 0.03* | (0.00 to 0.06) |
20–49 years | −0.09* | (−0.18 to 0.00) | −0.64* | (−1.23 to −0.05) | −0.50 | (−1.22 to 0.23) | 0.43** | (0.35 to 0.51) | 0.32** | (0.26 to 0.38) |
Residence | ||||||||||
Capital/largest city | −0.01 | (−0.07 to 0.05) | −0.54 | (−1.25 to 0.17) | 0.25 | (−0.77 to 1.28) | 0.29** | (0.14 to 0.44) | 0.48** | (0.37 to 0.59) |
Other Urban area | −0.08* | (−0.15 to 0.00) | −0.45* | (−0.86 to −0.04) | −0.30 | (−1.10 to 0.50) | 0.34** | (0.20 to 0.48) | 0.31** | (0.23 to 0.39) |
Rural area | −0.09* | (−0.17 to −0.02) | −0.61 | (−1.24 to 0.02) | −0.51 | (−1.23 to 0.22) | 0.31** | (0.24 to 0.38) | 0.16** | (0.12 to 0.20) |
Wealth | ||||||||||
Poorest (Q1) | 0.08 | (−0.04 to 0.20) | −0.37 | (−1.10 to 0.36) | −0.35 | (−1.18 to 0.48) | 0.13** | (0.07 to 0.19) | 0.04* | (0.01 to 0.06) |
Richest (Q5) | −0.09* | (−0.16 to −0.02) | −0.38 | (−0.79 to 0.04) | −0.14 | (−0.83 to 0.54) | 0.31** | (0.20 to 0.42) | 0.46** | (0.37 to 0.56) |
Education | ||||||||||
None | 0.09 | (−0.06 to 0.25) | −0.59 | (−1.28 to 0.10) | −0.57 | (−1.70 to 0.56) | 0.33* | (0.14 to 0.52) | 0.19** | (0.12 to 0.26) |
Primary | −0.06 | (−0.14 to 0.02) | −0.56 | (−1.18 to 0.05) | −0.48 | (−1.19 to 0.24) | 0.32** | (0.24 to 0.40) | 0.20** | (0.14 to 0.26) |
Secondary or more | −0.08* | (−0.14 to −0.02) | −0.33 | (−0.86 to 0.20) | −0.03 | (−0.81 to 0.75) | 0.13 | (−0.02 to 0.28) | 0.24** | (0.17 to 0.32) |
Total | −0.06* | (−0.11 to 0.00) | −0.48** | (−0.62 to −0.34) | −0.39** | (−0.58 to −0.20) | 0.31** | (0.25 to 0.37) | 0.22** | (0.17 to 0.27) |
WCA | ||||||||||
Age | ||||||||||
15–19 years | 0.03 | (−0.02 to 0.08) | −0.53* | (−1.02 to −0.04) | −1.02* | (−1.92 to −0.12) | 0.24** | (0.10 to 0.38) | 0.03 | (−0.03 to 0.10) |
20–49 years | −0.28** | (−0.37 to −0.19) | −0.70* | (−1.21 to −0.19) | −1.04* | (−1.73 to −0.35) | 0.55** | (0.44 to 0.66) | 0.39** | (0.28 to 0.50) |
Residence | ||||||||||
Capital/largest city | −0.23** | (−0.33 to −0.13) | −0.60 | (−1.25 to 0.05) | −1.01 | (−2.17 to 0.15) | 0.32** | (0.17 to 0.47) | 0.45** | (0.33 to 0.57) |
Other Urban area | −0.29** | (−0.37 to −0.21) | −0.75* | (−1.28 to −0.22) | −1.27* | (−2.07 to −0.47) | 0.39** | (0.28 to 0.50) | 0.36** | (0.26 to 0.46) |
Rural area | −0.26** | (−0.36 to −0.16) | −0.68* | (−1.25 to −0.11) | −0.92* | (−1.58 to −0.25) | 0.40** | (0.29 to 0.51) | 0.16** | (0.09 to 0.23) |
Wealth | ||||||||||
Poorest (Q1) | −0.28** | (−0.44 to −0.13) | −0.61* | (−1.19 to −0.04) | −0.63 | (−1.30 to 0.05) | 0.31** | (0.20 to 0.42) | 0.09* | (0.03 to 0.15) |
Richest (Q5) | −0.21** | (−0.28 to −0.15) | −0.64* | (−1.20 to −0.09) | −1.39* | (−2.24 to −0.54) | 0.32** | (0.21 to 0.43) | 0.45** | (0.34 to 0.57) |
Education | ||||||||||
None | −0.26** | (−0.35 to −0.17) | −0.60* | (−1.15 to −0.05) | −1.00* | (−1.87 to −0.13) | 0.44** | (0.33 to 0.55) | 0.25** | (0.15 to 0.35) |
Primary | −0.21** | (−0.30 to −0.12) | −0.57 | (−1.16 to 0.01) | 0.91* | (0.17 to 1.64) | 0.34** | (0.19 to 0.48) | 0.32** | (0.22 to 0.43) |
Secondary or more | −0.24** | (−0.35 to −0.13) | −0.68* | (−1.26 to −0.11) | −0.88 | (−1.85 to 0.08) | 0.00 | (−0.14 to 0.14) | 0.06 | (−0.06 to 0.18) |
Total | −0.21** | (−0.26 to −0.17) | −0.65** | (−0.77 to −0.53) | −1.07** | (−1.27 to −0.87) | 0.38** | (0.31 to 0.44) | 0.25** | (0.21 to 0.30) |
*P<0.05, **P<0.001.
†AARC in percentage points: 1 percentage point corresponds to a 1% average increase in the prevalence of the nutritional outcome among the subgroup of women each year.
‡30 countries with two or more surveys in SSA region between 1993 and 2017: 13 ESA countries and 17 WCA countries.
§20 countries with two or more surveys in SSA region between 2000 and 2017: 9 ESA countries and 11 WCA countries.
¶18–20 countries with two or more surveys in SSA region between 2000 and 2017: 7–9 countries in ESA and 11 countries in WCA.
ESA, Eastern and Southern Africa; SSA, sub-Saharan Africa; WCA, Western and Central Africa.