Table 2

One-year healthcare resource use by infection status

Multivariate analysis
No infection (N=606)
Mean (95% CI)
Infection (N=80)
Mean (95% CI)
P value
LOS, days10.5 (9.7 to 11.4)21.9 (17.3 to 27.7)<0.001
ICU LOS, days0.01 (0.01 to 0.02)0.01 (0.00 to 0.02)0.91
Number of readmissions0.5 (0.5 to 0.6)1.5 (1.2 to 1.8)<0.001
Readmission rate, %35.9 (32.1 to 39.9)74.4 (63.4 to 83.0)<0.001
Number of reoperations0.2 (0.2 to 0.3)0.6 (0.5 to 0.8)<0.001
Reoperations rate, %20.3 (17.2 to 23.8)38.6 (28.3 to 50.0)<0.001
Number of hospital outpatient referrals1.8 (1.6 to 2.1)1.7 (1.2 to 2.1)0.44
Primary care resource use
 Number of primary care events30.9 (29.2 to 32.7)45.9 (39.0 to 54.0)<0.001
 Number of tests and examinations14.0 (11.4 to 16.6)22.1 (13.9 to 31.3)0.052
  • ICU, intensive care unit; LOS, length of stay.