Table 4.

Risk factors for incorrect inhalation techniques by multivariable analysis (n=103)

Variables		Adjusted OR (95% CI)	P-value
Sex	Female	1.5 (0.5–4.6)	0.485
	Male (Ref)
Age	≥70 years	1.9 (0.8–5.3)	0.166
	<70 years (Ref)
Education	Low (≤6 years)	4.1 (1.2–13.4)	0.022
	High (>6 years) (Ref)
CAT scorea	≥10	2.3 (0.8–6.3)	0.107
	<10 (Ref)

Note: Data are shown as n (%) or the mean ± standard deviation,

^an=101.

Abbreviations: CAT, COPD Assessment Test; CI, confidence interval; COPD, chronic obstructive pulmonary disease; OR, odds ratio; Ref, reference.