Table 6.
Adjusted* relative risk ratios (RRRs) of annual weight loss compared to weight maintenance and annual weight gain compared to weight maintenance according to other sample characteristics
| RRR for annual weight loss >1 kg compared to weight maintenance |
RRR for annual weight loss >1.25% compared to weight maintenance |
RRR for annual weight gain >1 kg compared to weight maintenance |
RRR for annual weight gain >1.25% compared to weight maintenance |
|||||
|---|---|---|---|---|---|---|---|---|
| RRR (95% CI)* | p Value | RRR (95% CI)* | p Value | RRR (95% CI)* | p Value | RRR (95% CI)* | p Value | |
| Sex | ||||||||
| Male | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| Female | 0.92 (0.87 to 0.98) | 0.007 | 1.31 (1.24 to 1.39) | <0.001 | 1.03 (0.98 to 1.09) | 0.216 | 1.48 (1.41 to 1.56) | <0.001 |
| Age | ||||||||
| 45–54 | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| 55–64 | 1.05 (0.98 to 1.13) | 0.133 | 1.03 (0.97 to 1.11) | 0.331 | 0.79 (0.74 to 0.83) | <0.001 | 0.76 (0.72 to 0.81) | <0.001 |
| 65–74 | 1.05 (0.97 to 1.13) | 0.236 | 1.09 (1.01 to 1.18) | 0.030 | 0.56 (0.52 to 0.60) | <0.001 | 0.58 (0.54 to 0.62) | <0.001 |
| 75–84 | 1.23 (1.11 to 1.36) | <0.001 | 1.50 (1.36 to 1.66) | <0.001 | 0.39 (0.35 to 0.44) | <0.001 | 0.48 (0.43 to 0.53) | <0.001 |
| 85plus | 1.54 (1.24 to 1.92) | <0.001 | 2.23 (1.80 to 2.76) | <0.001 | 0.29 (0.21 to 0.40) | <0.001 | 0.44 (0.33 to 0.59) | <0.001 |
| Physical activity tertile | ||||||||
| Low | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| Moderate | 0.86 (0.80 to 0.92) | <0.001 | 0.89 (0.83 to 0.96) | 0.001 | 0.88 (0.83 to 0.94) | <0.001 | 0.91 (0.86 to 0.97) | 0.004 |
| High | 0.77 (0.72 to 0.83) | <0.001 | 0.85 (0.79 to 0.91) | <0.001 | 0.84 (0.79 to 0.89) | <0.001 | 0.93 (0.87 to 0.99) | 0.015 |
| Physical impairment | ||||||||
| None/minor | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| Moderate | 1.49 (1.36 to 1.64) | <0.001 | 1.33 (1.21 to 1.45) | <0.001 | 1.44 (1.32 to 1.57) | <0.001 | 1.25 (1.14 to 1.36) | <0.001 |
| Severe | 1.88 (1.67 to 2.12) | <0.001 | 1.69 (1.49 to 1.90) | <0.001 | 1.82 (1.62 to 2.05) | <0.001 | 1.60 (1.42 to 1.80) | <0.001 |
| Smoking status | ||||||||
| Never | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| Past | 1.21 (1.14 to 1.29) | <0.001 | 1.18 (1.12 to 1.26) | <0.001 | 1.19 (1.13 to 1.26) | <0.001 | 1.15 (1.09 to 1.21) | <0.001 |
| Current | 1.39 (1.23 to 1.57) | <0.001 | 1.51 (1.34 to 1.71) | <0.001 | 1.74 (1.57 to 1.92) | <0.001 | 1.78 (1.61 to 1.96) | <0.001 |
*Mutually adjusted for other variables listed in the table and for education. Notes: Physical impairment was measured using the Medical Outcomes Score-Physical Functioning (MOS-PF), which is equivalent to items from the physical functioning scale of the SF-36 health survey (none/minor=score of 75–100; moderate=score of 50–74; and severe=score of <50).