. 2009;27(3):141–147. doi: 10.1080/02813430902808643

Table II.

Physical activity level (n = 10 755).

	Diseases
	COPD n = 526	RA n = 1120	DM n = 2149	Healthy n = 6960
High activity level¹	15.8	25.6	27.5	39.8
Low activity level²	84.2	74.4	72.5	60.2
OR³ (95% CI)	1	1.80 (1.33–2.45)	2.17 (1.63–2.90)	2.49 (1.88–3.28)

Notes: Data are presented as percentage with odds ratio and 95% confidence intervals within parentheses. COPD = chronic obstructive pulmonary disease, RA = rheumatoid arthritis, DM = diabetes mellitus, OR = odds ratio, CI = confidence interval.

¹Moderate regular exercise (high activity >30 minutes, 1–2 times a week) or regular exercise and training (high activity >30 minutes ≥3 times a week),

²sedentary lifestyle (mostly sitting down or low activity <2 hours a week) or moderate exercise (low activity >2 hours a week).

³The adjusted odds ratio expresses the likeliness of higher activity level in the non-COPD groups compared with the COPD group after adjusting for sex, age, smoking, BMI, educational level, employment status, economic problems, and living alone.