. 2017 Feb 3;37(2):180–186. doi: 10.1007/s10875-017-0371-0

Table 2.

Number and infection rates of pneumonia and bronchitis (occurring within 7 days of IGIV infusion) by site of care

Infection type	Site of care (1076 patients)				Difference between hospital outpatient infusion center and home, p value
	Home (544 patients)		Hospital outpatient infusion center (532 patients)
	Episodes^a, n	Infection rate per pt-yr^b	Episodes^a, n	Infection rate per pt-yr^b
Pneumonia^c (244 episodes)	85	0.102	159	0.216	0.0071
Bronchitis^d (337 episodes)	125	0.150	212	0.288	<0.0001

pt-yr patient-year

^aAn infection episode was defined as ≤7-day gaps in claims for a particular infection rate diagnosis

^bPt-yrs = 834.9 (home) and 736.3 (hospital outpatient infusion center)

^cBacterial or viral

^dAny type of bronchitis