Table 3.
Associations between midlife determinants and the amount of time spent being sedentary (% sedentary minutes of wear time) in old age
| Determinants | Model | Model | Model | ||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | |||||
| B | p-value | B | p-value | B | p-value | ||
| Demographic | Marital status | ||||||
| married | ref | ||||||
| not married | 2.07 | 0.125 | 2.39 | 0.062 | 2.48 | 0.046 | |
| missing | 0.86 | 0.457 | 1.28 | 0.242 | 1.08 | 0.306 | |
| Socio-economic | Level of education | ||||||
| college/university | ref | ref | ref | ||||
| secondary | 1.84 | 0.048 | 1.51 | 0.087 | 0.90 | 0.295 | |
| primary | 2.43 | 0.019 | 2.51 | 0.011 | 2.00 | 0.038 | |
| Housing type | |||||||
| villa | ref | ||||||
| duplex | 1.56 | 0.109 | 2.69 | 0.004 | 2.19 | 0.016 | |
| apartment | 2.46 | 0.002 | 2.67 | <0.001 | 2.16 | 0.004 | |
| Occupation group | |||||||
| professional | ref | ref | ref | ||||
| light work | 0.75 | 0.513 | 1.16 | 0.288 | 0.99 | 0.349 | |
| manual labor | 0.43 | 0.728 | 1.19 | 0.314 | 0.87 | 0.450 | |
| housewife | 0.61 | 0.632 | 1.01 | 0.407 | 0.66 | 0.574 | |
| Lifestyle | Smoking status | ||||||
| never smoker | ref | ref | ref | ||||
| previous smoker | 0.46 | 0.626 | 0.12 | 0.892 | −0.28 | 0.756 | |
| current smoker | 1.95 | 0.017 | 1.05 | 0.178 | 0.39 | 0.613 | |
| Physical activity | −0.68 | 0.384 | −0.39 | 0.604 | −0.20 | 0.784 | |
| Active commuting | −0.23 | 0.837 | 0.27 | 0.800 | 0.25 | 0.804 | |
| Occupation activity | |||||||
| on the move | ref | ref | ref | ||||
| standing | 0.50 | 0.727 | 0.06 | 0.965 | 0.03 | 0.980 | |
| sitting | 1.21 | 0.159 | 0.69 | 0.395 | 0.93 | 0.236 | |
| Biomedical | BMI (kg/m2) | 0.33 | 0.001 | 0.22 | 0.021 | 0.21 | 0.078 |
| Weight status | |||||||
| BMI < 25 | ref | ref | ref | ||||
| 25 ≤ BMI < 30 | 1.14 | 0.132 | 0.41 | 0.573 | 0.04 | 0.955 | |
| BMI ≥ 30 | 4.94 | <0.001 | 3.87 | 0.002 | 3.53 | 0.009 | |
| Hypertension | −0.20 | 0.802 | 0.11 | 0.883 | 0.14 | 0.846 | |
| Cholesterol | 0.39 | 0.723 | 0.75 | 0.472 | 0.92 | 0.358 | |
| Triglyceride | 1.23 | 0.292 | 0.81 | 0.463 | 0.77 | 0.474 | |
| Heart disease | 8.22 | 0.016 | 7.55 | 0.020 | 6.30 | 0.045 | |
| Diabetes type 2 | −3.77 | 0.434 | −4.27 | 0.350 | −3.17 | 0.476 | |
| Arthritis | −3.77 | 0.434 | −4.27 | 0.350 | −3.17 | 0.476 | |
| Lung disease | 3.12 | 0.293 | 4.56 | 0.105 | 4.58 | 0.094 | |
| Lung function | |||||||
| FVC (% of predicted value) | −0.07 | 0.003 | −0.05 | 0.039 | −0.04 | 0.114 | |
| FEV1 (% of predicted value) | −0.05 | 0.018 | −0.04 | 0.087 | −0.02 | 0.244 | |
| FEV1/FVC | 2.04 | 0.631 | 1.19 | 0.767 | 1.56 | 0.689 | |
Regression results are presented as unstandardized coefficients (B). Model 1: adjusted for sex, age and follow-up time; Model 2 is additionally adjusted for MVPA (min/day); Model 3 is additionally adjusted for BMI, health status, mobility limitation and joint pain in old age.