Table 3.
Description of the Underweight subgroups
| Groups | p-value | |||
|---|---|---|---|---|
| Thinness 1 | Thinness 2 | Thinness 3 | ||
| Boys/girls (N) | 71/57 | 15/8 | 8/10 | 0.413a |
| Country: Ghana/South Africa (N) | 87/41 | 18/5 | 16/2 | < 0.001a |
| Age (years, mean (SD); range) | 9.5 (1.7); 5.8–12.9 | 9.6 (1.8); 6.0–11.9 | 9.2 (1.6); 6.0–11.8 | 0.706b |
| Height (cm, mean (SD); range) | 133.7 (10.9); 111–161 | 137.1 (12.3); 113–163 | 137.1 (15.5); 119–185 | 0.268b |
| Weight (kg, mean (SD); range) | 25.33 (4.85); 16.8–38.7 | 24.80 (4.60); 16.2–34.6 | 20.57 (6.92); 11.6–41.1 |
0.001b 1 = 2 > 3 |
| Waist-to-height ratio (mean (SD); range) | 0.422 (0.028); 0.37–0.50 | 0.404 (0.028); 0.36–0.45 | 0.409 (0.035); 0.36–0.47 |
0.014b 1 > 2 = 3 |
| BMI (kg/m2, mean (SD); range) | 14.03 (0.54); 13.01–15.21 | 13.08 (0.36); 12.47–13.81 | 10.74 (1.82); 6.00–12.48 |
< 0.001b 1 > 2 > 3 |
| Socio-economic area | ||||
| Low | 56 | 13 | 12 | 0.405a |
| Low-middle | 59 | 8 | 6 | |
| Middle | 8 | 2 | 0 | |
| High | 5 | 0 | 0 | |
Legend: a two-tailed Chi-square test; b one-way analysis of variance. Bold values indicate significant differences