Table 2.

Outcome variables at the end of the study

Outcome variables	Control N=38	Intervention N=47	P-value
Secondary outcome variables
No of patients with COPD exacerbations with hospitalization or ER visit	20 (52.6%)	19 (40.4%)	0.262
No of patients with COPD exacerbations ER visit	14 (36.8%)	9 (19.1%)	0.068
No of patients with COPD exacerbations hospitalization	16 (42.1%)	12 (25.5%)	0.106
No of patients who needed antibiotics	18 (47.4%)	27 (56.3%)	0.306
No of patients who needed glucocorticoids	17 (44.7%)	18 (37.5%)	0.413
Days of hospital stay due to respiratory cause, mean ± SD	12.4±7.1	9.3±6.4	0.154
All-cause mortality	2 (5.26%)	0	0.191
Primary outcome variables
No COPD exacerbations with hospitalization or A&E visit	52	42
Days at risk	3,801	4,700
Rate of exacerbations with hospitalization or A&E visit, n (range)	1.37 (1.02–1.79)	0.89 (0.64–1.21)	0.049
Rate ratio, n (range)	1.53 (1.01–2.29)

Abbreviation: SD, standard deviation.