Table 2. Odds ratios and 95% confidence intervals for associations between physical activity level and influenza-coded outpatient visits (adjusted and unadjusted analyses).

		Odds ratio (95% confidence interval)
Age and physical activity level	Events	Unadjusted	Adjusteda
All ages
Inactive	881	1.00	1.00
Moderately active	373	0.83 (0.74–0.94)	0.87 (0.76–0.98)
Active	409	0.87 (0.77–0.98)	0.86 (0.76–0.97)
<65 years
Inactive	688	1.00	1.00
Moderately active	304	0.82 (0.72–0.94)	0.85 (0.74–0.97)
Active	365	0.88 (0.77–0.99)	0.86 (0.75–0.98)
≥65 years
Inactive	193	1.00	1.00
Moderately active	69	0.86 (0.65–1.13)	0.98 (0.73–1.31)
Active	44	0.69 (0.50–0.95)	0.85 (0.60–1.21)

^a– All models adjusted for the variables listed in Table 1.