Table 4.
Adjusted Odds Ratios of BMI categories for cognitive decline stratified by physical activity among older adults with chronic disorders
| Type of disorder | Physical activity | |
|---|---|---|
| Low physical activity | High physical activity | |
| Metabolic disorders | n = 53/624 | n = 14/197 |
| Underweight | 1.34 (0.19–9.55) | NA |
| Normal weight | 1.00 | 1.00 |
| Overweight | 0.88 (0.41–1.92) | 0.09 (0.01–0.59) |
| Obesity | 1.17 (0.51–2.67) | 0.09 (0.01–1.15) |
| Cardiovascular disorders | n = 26/300 | n = 9/87 |
| Underweight | 4.30 (0.42–43.87) | NA |
| Normal weight | 1.00 | 1.00 |
| Overweight | 0.84 (0.25–2.81) | 0.03 (0.01–0.92) |
| Obesity | 1.83 (0.56–6.00) | 0.32 (0.02–6.59) |
| Anxio-depressive disorders | n = 27/284 | n = 6/71 |
| Underweight | 0.46 (0.03–6.87) | NA |
| Normal weight | 1.00 | 1.00 |
| Overweight | 0.94 (0.31–2.88) | 0.11 (0.01–5.40) |
| Obesity | 0.85 (0.26–2.75) | 0.74 (0.02–22.42) |
Abbreviations: BMI Body Mass Index (in kg/m2), NA Not applicable due to small cell effectives
n/N number of cases of cognitive decline in each strata
Multivariable logistic regression models were adjusted for sociodemographic, lifestyle, physical and mental health factors; Bold: p-value < 0.05