Table 2.
Cognitive impairment as defined by the Strawbridge questionnaire as an explanatory variable for physical performance outcomes
| Men | Women | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unadjusted | Adjusteda | Unadjusted | Adjusteda | |||||||||||||
| N | Regression coefficient | 95% CI | p value | N | Regression coefficient | 95% CI | p value | N | Regression coefficient | 95% CI | p value | N | Regression coefficient | 95% CI | p value | |
| Grip (kg) | 219 | − 1.10 | (− 3.46, 1.26) | 0.361 | 191 | 0.12 | (− 2.15, 2.39) | 0.919 | 221 | − 2.04 | (− 3.87, − 0.21) | 0.029 | 196 | − 1.53 | (− 3.50, 0.45) | 0.130 |
| Gait speed (FY z-score) | 205 | − 0.28 | (− 0.62, 0.05) | 0.094 | 178 | − 0.21 | (− 0.55, 0.12) | 0.216 | 205 | − 0.25 | (− 0.57, 0.06) | 0.113 | 181 | − 0.20 | (− 0.50, 0.11) | 0.211 |
| Repetitive sit-to-stand (FY z-score) | 194 | − 0.01 | (− 0.37, 0.35) | 0.963 | 170 | 0.00 | (− 0.36, 0.35) | 0.995 | 187 | 0.26 | (− 0.08, 0.59) | 0.129 | 167 | 0.27 | (− 0.11, 0.65) | 0.158 |
| Physical performance score (FY z-score) | 202 | − 0.38 | (− 0.77, 0.00) | 0.050 | 177 | − 0.34 | (− 0.71, 0.03) | 0.072 | 198 | − 0.27 | (− 0.64, 0.09) | 0.143 | 174 | − 0.22 | (− 0.59, 0.16) | 0.260 |
| N | Odds ratio | 95% CI | p value | N | Odds ratio | 95% CI | p value | N | Odds ratio | 95% CI | p value | N | Odds ratio | 95% CI | p value | |
| Tinetti balance test < 10 s | 212 | 1.79 | (0.84, 3.81) | 0.129 | 188 | 1.40 | (0.60, 3.28) | 0.440 | 213 | 1.50 | (0.75, 3.01) | 0.251 | 188 | 1.50 | (0.62, 3.61) | 0.366 |
| Low physical performance score | 202 | 2.01 | (0.96, 4.23) | 0.065 | 177 | 2.46 | (0.98, 6.15) | 0.055 | 198 | 1.67 | (0.77, 3.64) | 0.196 | 174 | 1.38 | (0.54, 3.53) | 0.496 |
aAdjusted for age, BMI, social class, smoker status, alcohol consumption, physical activity, dietary calcium intake and years since menopause and HRT use in women