The level of leisure time physical activity is associated with work ability-a cross sectional and prospective study of health care workers

Table 3 Prospective analysis showing the likelihood of having a positive change in work ability index ¹ from 2004 to 2006 for different levels of physical activity reported at baseline in 2004 (n = 2.597), presented as prevalence ratios (PR) and 95% confidence interval (CI)

	Numbers included in the analysis n (%)	Unadjusted		Adjusted²
		PR	95% CI	PR	95% CI
Sedentary³	120 (10)	1		1
Light physical activity	568 (49)	1.27	1.08-1.49	1.26	1.07-1.48
Moderate physical activity	431 (37)	1.64	1.40-1.93	1.57	1.33-1.84
Vigorous physical activity	38 (3)	1.73	1.34-2.23	1.59	1.23-2.06

¹Change in the positive direction between the four categories “poor”, “moderate”, “good” and “excellent”, or remaining in the category “excellent”.
²Adjusted for age, sex and BMI.
³Reference group.

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