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Table 4 Patient characteristics: cases and controls

From: A multi-center nested case-control study on hospitalization costs and length of stay due to healthcare-associated infection

Variable Cases(n = 175) Controls(n = 175)
Mean age ± SD 58.15 ± 20.56 57.76 ± 20.09
Classification score of disease conditions
 1 40(22.9%) 40(22.9%)
 2 63(36.0%) 63(36.0%)
 3 42(24.0%) 42(24.0%)
 4 26(14.9%) 26(14.9%)
 5 4(2.3%) 4(2.3%)
Gender
 Male 99(56.6%) 99(56.6%)
 Female 76(43.4%) 76(43.4%)
Community infections 39(22.3%) 39(22.3%)
Repeated hospitalization 41(23.4%) 41(23.4%)
Low immune function 29(16.6%) 29(16.6%)