Table 4.
Model-based estimates of weight change for completers and non-completers by sex, country and BMI group.
| Body Mass Index (BMI) Groups | ||||||||
| BMI < 25 | 25 ≤ BMI < 30 | BMI ≥ 30 | Combined | |||||
| N* | Δ† weight (SE‡) | N | Δ weight (SE) | N | Δ weight (SE) | N | Δ weight (SE) | |
| COMPLETERS & NON-COMPLETERS | ||||||||
| Nigeria | 996 | 0.60(0.06) | 182 | -0.44(0.09) | 64 | -2.10(0.11) | 1,242 | 0.31(0.05) |
| Women | 488 | 0.91(0.09) | 121 | -0.24(0.11) | 56 | -2.02(0.12) | 665 | 0.45(0.07) |
| Men | 508 | 0.31(0.09) | 61 | -0.83(0.12) | 8 | -2.62(0.15) | 577 | 0.15(0.08) |
| Jamaica | 648 | 2.32(0.06) | 424 | 1.31(0.07) | 337 | -0.36(0.08) | 1,409 | 1.37(0.04) |
| Women | 280 | 2.69(0.08) | 284 | 1.53(0.08) | 289 | -0.27(0.09) | 853 | 1.30(0.05) |
| Men | 368 | 2.03(0.08) | 140 | 0.85(0.10) | 48 | -0.88(0.11) | 556 | 1.48(0.06) |
| US | 150 | 2.30(0.09) | 243 | 1.19(0.09) | 416 | -0.52(0.09) | 809 | 0.52(0.05) |
| Women | 95 | 2.56(0.12) | 166 | 1.40(0.11) | 334 | -0.39(0.10) | 595 | 0.58(0.07) |
| Men | 55 | 1.84(0.12) | 76 | 0.73(0.12) | 83 | -1.04(0.12) | 214 | 0.33(0.07) |
Estimated rate of weight change per year by multi-level regression model. Data were collected from 1995 to 1999 from Nigeria, Jamaica and the United States (US). All eligible subjects are included, completers (all three weight measurements) and non-completers (only two weight determinations).
* Sample size. † Δ weight = weight change in kilograms per year. ‡SE = standard error.