TABLE 3.

Hazard Ratios for Mortality Risk Associated With Appetite and Physical Activity on an Individual Level at Intake of the Study Adjusted for Age, Sex, Cognition, Smoking Status, and BMI

At intake N = 290	HR [95% CI]
Appetite
I ate most	1.00
Co-twin ate most	0.87 [0.63–1.20]
Activity
I was most active	1.00
Co-twin most active	2.12 [1.52–2.95]
Age	1.08 [1.04–1.12]
Sex
Male	1.00
Female	0.88 [0.63–1.23]
Cognition	0.91 [0.87–0.95]
Smoking status
Non-smoker	1.00
Current	1.17 [0.75–1.83]
Former	1.17 [0.82–1.66]
BMI
<18.5	1.98 [1.14–3.44]
18.5–24.9	1.00
25.0–29.9	0.98 [0.69–1.40]
30.0–34.9	0.90 [0.40–2.04]
≥35.0	2.19 [1.09–4.41]

Note: Proportional-hazards assumption is violated in this multivariate Cox regression analysis. If excluding BMI adjustments, the proportional-hazards assumption was fulfilled, and did not alter the conclusion.