Table 2.

Comparison of exacerbation-related outcomes between intervention group and control group (N=85).

Outcome	Mobile health tool intervention group (n=41), mean (SD)	Paper action plan control group (n=44), mean (SD)	Rate ratio (95% CI)a	P value
Exacerbation-free weeksb	30.6 (13.3)	28.0 (14.8)	1.21 (0.77-1.90)	.40
Unscheduled health care consultations because of respiratory complaintsc	1.6 (1.7)	1.6 (2.0)	0.89 (0.50-1.60)	.70
Symptom-based exacerbationsb	4.5 (2.3)	4.3 (2.1)	1.07 (0.65-1.75)	.80
Exacerbations treated with antibiotics and/or prednisolonec	1.1 (1.5)	1.0 (1.3)	1.01 (0.53-1.93)	.97
Exacerbation-related hospital admissionsc	0.15 (0.43)	0.14 (0.41)	1.25 (0.35-4.44)	.74

^aCalculated using negative binomial regression analyses, relative to participants’ follow-up time, controlling for age and gender.

^bData retrieved from weekly patient reports.

^cData retrieved from patient medical files.