Table 3.

All-cause HRU among COPD patients on triple therapy from Cohort 2 in the baseline year

All-cause HRU	COPD patients on triple therapy, N=30,493
Hospitalization
At least one hospitalization	10,655 (34.9%)
Among patients with at least one hospitalization
Mean (SD); median (range) of hospitalizations	1.8 (2.1); 1.0 (1–117)
Mean (SD); median (range) of length of stay per patient	9.9 (13.2); 6.0 (1–196)
Outpatient visits
Any outpatient visit	29,895 (98.0%)
Mean (SD); median (range) of outpatient visits per patient	19.5 (18.5); 14.0 (0–347)
ED visits
Any ED visit	10,625 (34.8%)
Mean (SD); median (range) of ED visits per patient	0.7 (2.0); 0.0 (0–140)
Spirometry visits
Any visit where spirometry was assessed	14,318 (47.0%)
Among those with either no exacerbation or one mild exacerbation	8,078/18,483 (43.7%)
Mean (SD); median (range) of visits in which spirometry was assessed	0.9 (1.4); 0.0 (0–38)
Oxygen therapy
Any visit with oxygen therapy	9,099 (29.8%)
Mean (SD); median (range) of visits with oxygen therapy	4.3 (9.0); 0.0 (0–347)

Notes: IMS PharMetrics Plus database from January 1, 2009 to December 31, 2013. Population used is the one identified for Objective 2. All-cause visits were defined as any inpatient or outpatient visit related to any diagnosis; COPD-related visits were identified as inpatient or outpatient visits in which a diagnosis code for COPD is the primary diagnosis code associated with that visit (or discharge claim for an inpatient visit). Inpatient and ED visits were limited to one per day; outpatient visits were limited to one per provider per day; length of stay was truncated for stays over 365 days; COPD exacerbation severity was evaluated regardless of cause by definition of the algorithm. Mean, SD, median, and range were reported for the entire population.

Abbreviations: ED, emergency department; HRU, health care resource utilization; SD, standard deviation.