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Table 7 Covariate and equation parameters for linear regression of hospitalization costs

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

Variable Unstandardized
Coefficients
Std. Error Standardized
Coefficients
Statistics
(t)
P
Constant 3.820 .120   31.944 .000
HAIs sites
 Blood related .762 .208 .265 3.661 .000
 Superficial incision .482 .128 .320 3.760 .000
 Organ lacunar .673 .308 .149 2.184 .030
 Deep incision .774 .195 .294 3.961 .000
 Intra-abdominal tissue .695 .435 .109 1.595 .113
 Urinary .511 .124 .360 4.120 .000
 Skin soft-tissue .422 .151 .222 2.789 .006
 Lower respiratory .606 .104 .625 5.820 .000
 Gastrointestinal .060 .190 .023 .315 .753
 Other −.049 .429 −.008 −.114 .909
Classification of GDP
 1 .088 .124 .057 .710 .479
 2 −.052 .081 −.053 −.649 .517
 3 −.076 .096 −.064 −.784 .434
Classification of the number of hospital beds
 1 −.241 .102 −.184 −2.367 .019
 2 −.162 .090 −.149 −1.795 .075
 3 .013 .097 .012 .138 .890