Table 4.
Partition and isotemporal substitution models for the association between accelerometer derived physical activity (scaled by 10 min) and dichotomous SWAN SPPB score1, in the total cohort and after stratification by race/ethnicity (n = 1239).2
| Adjusted Model (Total)2 | Adjusted Model2, 3 |
|||||||
|---|---|---|---|---|---|---|---|---|
| White | Black | Chinese | Hispanic | Japanese | ||||
| Partition Models | ||||||||
| OR (95% CI) | p value | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | ||
| Sedentary | 1.00 (0.98,1.01) | 0.61 | 0.99 (0.97,1.02) | 1.00 (0.98,1.03) | 0.98 (0.95,1.02) | 0.97 (0.90,1.04) | 1.02 (0.95,1.09) | |
| Low-light | 1.01 (0.98,1.03) | 0.21 | 0.97 (0.94,1.01) | 1.05 (0.99,1.11) | 1.03 (0.96,1.10) | 1.29 (1.03,1.60) | 0.97 (0.85,1.09) | |
| High-light | 0.99 (0.94,1.03) | 0.33 | 0.99 (0.93,1.06) | 0.95 (0.86,1.07) | 0.99 (0.88,1.10) | 0.78 (0.58,1.06) | 1.21 (0.97,1.52) | |
| MVPA | 0.91 (0.87,0.96) | 0.004 | 0.91 (0.85,0.98) | 1.01 (0.89,1.15) | 0.88 (0.77,1.00) | 0.95 (0.63,1.43) | 0.69 (0.52,0.90) | |
| Isotemporal Substitution Models | ||||||||
| Adjusted Model (Total)2 | Adjusted Model2, 3 | |||||||
| White | Black | Chinese | Hispanic | Japanese | ||||
| OR (95% CI) | p value | |||||||
|
Replacing Sedentary |
Low-light | 1.04 (0.96,1.12) | 0.38 | 0.98 (0.94,1.02) | 1.04 (0.98,1.11) | 1.05 (0.97,1.13) | 1.33 (1.06,1.67) | 0.95 (0.84,1.07) |
| High-light | 0.98 (0.86,1.10) | 0.65 | 1.00 (0.94,1.06) | 0.95 (0.86,1.06) | 1.01 (0.91,1.12) | 0.81 (0.61,1.07) | 1.19 (0.97,1.46) | |
| MVPA | 0.78 (0.67,0.90) | 0.001 | 0.92 (0.86,0.98) | 1.00 (0.88,1.14) | 0.89 (0.79,1.02) | 0.98 (0.66,1.46) | 0.67 (0.51,0.88) | |
Dichotomous SPPB score was defined as no versus any limitation.
Model adjusted for age, employment, BMI, site, bodily pain and ever had diabetes (total cohort and stratified by race/ethnicity). Models for Chinese, Hispanic and Japanese women do not adjust for site. Model for Chinese does not adjust for bodily pain, and model for Hispanic does not adjust for bodily pain and employment due to quasi-complete separation of data points.
P-values for the interaction between activity type and race/ethnicity group were: sedentary*race/ethnicity = 0.05, low-light*race/ethnicity = 0.005, high-light*race/ethnicity = 0.09, MVPA*race/ethnicity = 0.43.