TABLE 1.

Baseline patient characteristics^a

Patient characteristic	RVP		RPP		P
	No. of subjectsb (n = 110)	% (95% CI)	No. of subjects (n = 234)	% (95% CI)
Mean age (yr)	70.5	(67.1–74.0)	70.2	(68.1–72.3)	0.862
Female	64	58.2 (48.8–67.1)	124	53.0 (46.6–59.3)	0.368
COPD	50	45.5 (36.4–54.8)	104	44.4 (38.2–50.9)	0.861
Asthma	14	12.7 (7.7–20.4)	54	23.1 (18.1–28.9)	0.027
Immunosuppressed	13	11.8 (7.0–19.3)	36	15.4 (11.3–20.6)	0.379
Transplant	2	1.8 (0.5–7.0)	5	2.1 (0.9–5.0)	0.846
ICU level of care	30	27.3 (19.8–36.4)	41	17.5 (13.2–23)	0.039

^aP values were calculated from the generalized linear models for normal distribution (age) and binary variables. n, total number of subjects.

^bExcept as noted for the mean age in column 1.