TABLE 2.
Generalized linear mixed model estimated for SPPB scores as a function of abdominal obesity and dynapenia status over 8 y of follow-up in older English males and females1
| Males | Females | |||
|---|---|---|---|---|
| Estimated parameters β (95% CI) | Estimated parameters β (95% CI) | |||
| Time, y | −0.19 | (−0.28, −0.10)** | −0.13 | (−0.22, −0.04)* |
| Intercept main effect | ||||
| ND/NAO | 10.50† | 10.02† | ||
| ND/AO | −0.27 | (−0.41, −0.13)** | −0.37 | (−0.52, −0.22)** |
| D/NAO | −1.17 | (−1.55, −0.79)** | −0.83 | (−1.21, −0.46)** |
| D/AO | −1.11 | (−1.58, −0.65)** | −1.39 | (−1.76, −1.02)** |
| Slope interaction effect | ||||
| Time × ND/NAO | 10.44† | 9.97† | ||
| Time × ND/AO | −0.02 | (−0.06, 0.02) | −0.01 | (−0.05, 0.03) |
| Time × D/NAO | −0.01 | (−0.10, 0.08) | 0.01 | (−0.07, 0.09) |
| Time × D/AO | −0.11 | (−0.21, −0.01)* | 0.01 | (−0.06, 0.09) |
Generalized linear mixed models performed to estimate β coefficients and 95% CIs for SPPB scores as a function of abdominal obesity and dynapenia status in older adults. Model adjusted for age, total household wealth, years of schooling, marital status, smoking status, sedentary behavior, hypertension, diabetes, lung disease, heart disease, stroke, osteoarthritis, osteoporosis, number of falls, joint pain, depressive symptoms, mean memory score, and change in weight. Intercept represents differences in mean SPPB score between ND/AO, D/NAO, and D/AO and the reference group (ND/NAO) at baseline. Time represents SPPB performance decline in reference group. Slope represents estimated changes in SPPB scores per unit of time between group in question and reference. *,**Significantly different from ND/NAO: *P < 0.05, **P < 0.001. †Indicates margins to reference group. Males, n = 1780; females, n = 2095. D/AO, dynapenic/abdominal obesity; D/NAO, dynapenic/nonabdominal obesity; ND/AO, nondynapenic/abdominal obesity; ND/NAO, nondynapenic/nonabdominal obesity; SPPB, Short Physical Performance Battery.