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Table 3 Adjusted odds ratios for the association between HAI and risk factors among inpatients aged 60+, Beijing, China

From: Risk factors of health care–associated infection in elderly patients: a retrospective cohort study performed at a tertiary hospital in China

  β Wals χ2 OR 95% CI. P
Lower limit Upper limit
Age .204 16.168 1.226 1.110 1.355 < 0.001
Body weight −.015 21.077 .985 .979 .991 < 0.001
Hospital days before HAI −.026 16.718 1.138 1.131 1.145 < 0.001
Operation −.370 14.642 .691 .572 .835 < 0.001
ICU admission .388 11.606 1.474 1.179 1.842 .001
Using ventilator .624 16.419 1.867 1.380 2.525 < 0.001
Using central line catheter 1.350 159.015 3.856 3.126 4.755 < 0.001
Using urinary catheter 1.047 102.414 2.848 2.325 3.488 < 0.001
Cerebral hemorrhage .329 5.662 1.389 1.060 1.821 .017
Cerebral infarction .370 20.308 1.448 1.233 1.701 < 0.001
Brain neoplasms .359 12.419 1.432 1.173 1.748 < 0.001
Diabetes mellitus .181 5.196 1.198 1.026 1.400 .023
Coronary artery disease .166 3.968 1.180 1.003 1.389 .046
Malignant tumor .162 5.946 1.176 1.032 1.339 .015
Malignant hematonosis 1.613 244.942 5.018 4.100 6.141 < 0.001
  1. Notes: Binary multivariable logistic regression was performed. Statistical testing was performed at the conventional 2-tailed α = 0.05.OR Odds ratio
  2. CI confidence interval
  3. Only significant predictors are presented. Variables adjusted in the model include age, body weight, hospital days before HAI, operation, ICU admission, use of ventilator, central line catheter and urinary catheter and some neurological and chronic noncommunicable diseases (including cerebral hemorrhage, cerebral infarction, brain neoplasms, hypertension, diabetes mellitus, coronary artery disease, COPD, malignant tumor, malignant hematonosis and gynecological diseases)