Table 1. Baseline demographics and characteristics of study population.

Demographics and characteristics	EIA (n = 79)	PCR (n = 87)	P
Age in years, mean (CI)	55.9 (52.54-59.30)	56.8 (53.22-60.46)	.713
History of C. difficile, n (%)	4 (5.06)	6 (6.89)	.794
Hospital LOS in days, mean (CI)	15.86 (11.61-20.12)	17.83 (12.69-22.97)	.558
Male, n (%)	42 (53.16)	38 (43.67)	.276
Test performed in ICU, n (%)	13 (16.45)	13 (14.94)	.883

Note: C. difficile = Clostridium difficile; CI = 95% confidence interval; EIA = enzyme immunoassay; ICU = intensive care unit; LOS = length of stay; PCR = polymerase chain reaction.