Table 2 Parameter estimates (with 95% confidence intervals) for the change in mean WC over time
Model 1a | Model 2b | |
|---|---|---|
Overall analysis (total sample) | ||
2009 | 2.97 (2.01 to 3.93) | 1.26 (0.35 to 2.17) |
2013 | 4.93 (3.87 to 6.00) | 1.88 (1.09 to 2.67) |
Subgroup analyses | ||
Sex | ||
Men | ||
2009 | 3.00 (1.56 to 4.43) | 0.27 (-0.62 to 1.17) |
2013 | 4.77 (3.18 to 6.37) | 1.09 (0.39 to 1.80) |
Women | ||
2009 | 3.01 (2.00 to 4.02) | 2.32 (1.25 to 3.39) |
2013 | 5.07 (4.00 to 6.14) | 2.68 (1.64 to 3.71) |
Age group (years) | ||
18–24 | ||
2009 | 3.13 (1.85 to 4.42) | 1.39 (0.37 to 2.42) |
2013 | 3.74 (2.34 to 5.14) | 1.75 (0.91 to 2.58) |
25–34 | ||
2009 | 3.35 (1.98 to 4.73) | 1.53 (0.42 to 2.65) |
2013 | 4.95 (3.74 to 6.16) | 1.97 (1.09 to 2.84) |
35–44 | ||
2009 | 2.72 (1.32 to 4.13) | 1.25 (0.36 to 2.15) |
2013 | 4.90 (3.41 to 6.39) | 1.88 (0.86 to 2.89) |
45–54 | ||
2009 | 1.98 (0.22 to 3.73) | 0.65 (-0.49 to 1.79) |
2013 | 5.09 (3.43 to 6.74) | 1.63 (0.56 to 2.7) |
55–64 | ||
2009 | 3.49 (1.26 to 5.72) | 1.25 (-0.08 to 2.57) |
2013 | 4.82 (2.50 to 7.14) | 1.94 (0.54 to 3.34) |
Area of residence | ||
Urban | ||
2009 | 3.79 (2.25 to 5.33) | 2.12 (0.88 to 3.35) |
2013 | 5.83 (4.24 to 7.42) | 2.42 (1.21 to 3.63) |
Rural | ||
2009 | 2.21 (0.95 to 3.47) | 0.43 (-0.95 to 1.81) |
2013 | 4.08 (2.59 to 5.57) | 1.37 (0.34 to 2.41) |
Education | ||
Tertiary educated | ||
2009 | 2.05 (0.54 to 3.55) | 0.80 (-0.59 to 2.19) |
2013 | 3.56 (2.19 to 4.94) | 1.86 (0.80 to 2.92) |
Non-tertiary educated | ||
2009 | 3.18 (2.17 to 4.2) | 1.40 (0.49 to 2.32) |
2013 | 5.37 (4.19 to 6.54) | 1.91 (1.09 to 2.74) |