Table 2.
Baseline characteristics and dietary factors of the participants according to physical activity (PA) (h/week) groups stratified for protein intake cut-off*
(Mean values and standard deviations; numbers and percentages)
| Protein intake < 1·1 g/kg body weight | Protein intake ≥ 1·1 g/kg body weight | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PA = 0 h/week (n 45) | 0 < PA < 2·5 h/week (n 111) | PA ≥ 2·5 h/week (n 231) | PA = 0 h/week (n 4) | 0 < PA < 2·5 h/week (n 50) | PA ≥ 2·5 h/week (n 113) | ||||||||||||||
| Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | P | |||||||
| Age (years) | 67·9 | 2·2 | 67·9 | 1·8 | 67·8 | 1·8 | 67·9 | 2·0 | 67·9 | 1·8 | 67·8 | 1·8 | 0·553 | ||||||
| BMI (kg/m2) | 30·5 | 4·5 | 29·1 | 4·6 | 28·6 | 4·0 | 30·4 | 4·5 | 29·1 | 4·6 | 27·6 | 4·0 | 0·001 | ||||||
| Time since menopause (years) | 19·4 | 7·6 | 18·4 | 4·9 | 18·4 | 5·2 | 19·2 | 7·1 | 19·1 | 6·2 | 17·5 | 4·7 | 0·282 | ||||||
| Income (euros/month) | 747 | 286 | 831 | 309 | 879 | 297 | 987 | 255 | 880 | 339 | 893 | 292 | 0·734 | ||||||
| Number of chronic diseases | 1·5 | 1·0 | 1·5 | 1·1 | 1·5 | 1·2 | 1·7 | 0·8 | 1·4 | 1·2 | 1·3 | 1·0 | 0·409 | ||||||
| Mobility status | |||||||||||||||||||
| Normal | 0·0001 | ||||||||||||||||||
| n | 32 | 93 | 212 | 8 | 43 | 112 | |||||||||||||
| % | 76·2 | 84·5 | 94·6 | 100 | 100 | 99·1 | |||||||||||||
| Restricted | |||||||||||||||||||
| n | 10 | 17 | 12 | 0 | 0 | 1 | |||||||||||||
| % | 23·8 | 15·5 | 5·4 | 0 | 0 | 0·9 | |||||||||||||
| Current smoker | 2 | 4·7 | 9 | 8·2 | 13 | 5·8 | 0 | 0 | 1 | 2·3 | 1 | 0·9 | 0·644 | ||||||
| n | |||||||||||||||||||
| % | |||||||||||||||||||
| Current hormone therapy | 0·472 | ||||||||||||||||||
| n | 7 | 26 | 55 | 1 | 9 | 25 | |||||||||||||
| % | 15·6 | 23·4 | 23·8 | 12·5 | 20·5 | 22·1 | |||||||||||||
| Dietary factors and food groups | |||||||||||||||||||
| Energy intake (kJ) | 5581 | 1473 | 6029 | 1230 | 6113 | 1343 | 7150 | 741 | 7870 | 1289 | 7803 | 1335 | 0·025 | ||||||
| Alcohol (g/d) | 4·8 | 1·2 | 7·7 | 1·1 | 10·7 | 1·8 | 12·3 | 1·5 | 12·3 | 1·5 | 11·3 | 17 | 0·044 | ||||||
| Protein (g/d) | 55·7 | 15·6 | 61·8 | 11·9 | 60·5 | 13·4 | 81·8 | 13·7 | 86·2 | 14·5 | 86·9 | 13·6 | 0·033 | ||||||
| Protein (g/kg body weight) | 0·69 | 0·2 | 0·81 | 0·14 | 0·83 | 0·16 | 1·2 | 0·1 | 1·3 | 0·2 | 1·3 | 0·2 | 0·045 | ||||||
| Carbohydrate (g/d) | 168 | 47 | 179 | 40 | 182 | 42 | 214 | 33·3 | 224 | 42 | 226 | 48 | 0·137 | ||||||
| Fat intake (g/d) | 46·2 | 15·5 | 49·6 | 15·8 | 50·3 | 16·9 | 55·6 | 16·9 | 63·9 | 17·2 | 226 | 48 | 0·171 | ||||||
*
ANOVA was used to calculate means and standard deviations, and χ2 tests for categorical variables to calculate n and percentages according to physical activity groups stratified for protein intake.