Table 2.
Linear regression coefficients and R2(% of the variance explained) for the independent effects of age, gender and education upon skull circumference and leg length, by site
| Site | Parameter | Skull circumference | Leg length | ||||
|---|---|---|---|---|---|---|---|
| Age (per year) | Gender (male vs. female) | Education (per level of education) | Age (per year) | Gender (male vs. female) | Education (per level of education) | ||
| Cuba | Beta coeff. R2 | -0.04 (-0.05 to -0.03) 2.0% |
1.5 (1.3 to 1.6) 13.5% |
-0.01 (-0.08 to 0.05) 0.0% |
-0.09 (-0.13 to -0.05) 0.8% |
2.3 (1.7 to 2.8) 2.1% |
0.86 (0.60 to 1.12) 1.5% |
| DR | Beta coeff. R2 | -0.05 (-0.06 to -0.03) 2.3% |
1.2 (1.0 to1.4) 6.2% |
0.14 (0.03 to 0.24) 0.3% |
-0.11 (-0.15 to -0.07) 1.7% |
5.1 (4.5 to 5.7) 12.4% |
0.23 (-0.07 to 0.53) 0.1% |
| Peru (urban) | Beta coeff. R2 | -0.02 (-0.04 to -0.01) 0.6% |
1.6 (1.4 to 1.9) 12.6% |
0.08 (-0.04 to 0.19) 0.1% |
-0.12 (-0.18 to-0.07) 1.3% |
3.4 (2.5 to 4.2) 4.3% |
0.67 (0.24 to 1.11) 0.7% |
| Peru (rural) | Beta coeff. R2 | -0.05 (-0.07 to-0.02) 2.8% |
1.0 (0.6 to 1.3) 5.9% |
0.19 (0.01 to 0.38) 0.8% |
-0.04 (-0.12 to 0.05) 0.1% |
2.9 (1.6 to 4.2) 3.8% |
0.03 (-0.64 to 0.70) 0.0% |
| Venezuela | Beta coeff. R2 | -0.03 (-0.05 to -0.01) 0.9% |
2.1 (1.8 to 2.3) 18.6% |
0.10 (-0.02 to 0.22) 0.2% |
-0.10 (-0.17 to -0.03) 0.5% |
4.5 (3.6 to 5.4) 5.9% |
0.73 (0.22 to 1.23) 0.5% |
| Mexico (urban) | Beta coeff. R2 | -0.05 (-0.06 to -0.03) 2.3% |
1.9 (1.6 to 2.1) 18.8% |
0.02 (-0.08 to 0.12) 0.0% |
-0.10 (-0.16 to -0.04) 1.2% |
5.3 (4.6 to 6.1) 15.7% |
0.85 (0.54 to 1.16) 2.8% |
| Mexico (rural) | Beta coeff. R2 | -0.02 (-0.04 to 0.00) 0.5% |
0.9 (0.6 to1.1) 5.0% |
0.00 (-0.14 to 0.14) 0.0% |
-0.07 (-0.12 to -0.02) 0.6% |
4.5 (3.8 to 5.3) 13.0% |
0.39 (-0.05 to 0.83) 0.3% |
| China (urban) | Beta coeff. R2 | -0.01 (-0.03 to 0.01) 0.1% |
1.4 (1.2 to1.7) 11.7% |
0.09 (0.00 to 0.18) 0.4% |
-0.17 (-0.23 to -0.11) 3.0% |
7.0 (6.2 to 7.7) 23.2% |
0.51 (0.23 to 0.79) 1.1% |
| China (rural) | Beta coeff. R2 | -0.02 (-0.05 to 0.02) 0.1% |
1.1 (0.6 to 1.6) 1.8% |
0.24 (-0.02 to 0.49) 0.3% |
-0.12 (-0.23 to 0.0) 0.4% |
7.3 (5.7 to 8.7) 8.3% |
0.01 (-0.76 to 0.78) 0.0% |
| India (urban) | Beta coeff. R2 | 0.01 (-0.02 to 0.03) 0.1% |
0.9 (0.6 to 1.2) 3.8% |
0.24 (0.12 to 0.37) 1.5% |
0.01 (-0.06 to 0.08) 0.0% |
3.6 (2.7 to 4.5) 6.3% |
-0.08 (-0.46 to 0.30) 0.0% |
| India (rural) | Beta coeff. R2 | -0.03 (-0.05 to 0.00) 0.8% |
1.0 (0.7 to 1.2) 5.8% |
0.06 (-0.09 to 0.21) 0.1% |
-0.05 (-0.12 to 0.01) 0.3% |
6.4 (5.5 to 7.2) 17.7% |
0.49 (-0.05 to 1.02) 0.3% |