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Table 2 Association between nutritional risk screening score and nonventilator hospital-acquired pneumonia in multivariate logistic regression model

From: Nutritional risk screening score as an independent predictor of nonventilator hospital-acquired pneumonia: a cohort study of 67,280 patients

NRS score Non-adjusted Model Model I Model II Model III
OR (95% CI) P value OR (95% CI) P value OR (95% CI) P value OR (95% CI) P value
Continuous, per 1-point increment 2.05(1.92–2.19) < 0.001 1.74(1.62–1.87) < 0.001 1.28 (1.18, 1.40) < 0.001 1.30(1.19–1.43) < 0.001
Categories
 < 3 Ref   Ref   Ref   Ref  
 ≥ 3 7.31(5.86–9.31) < 0.001 4.39(3.47–5.55) < 0.001 1.97 (1.52–2.56) < 0.001 2.06(1.58–2.70) < 0.001
  1. Abbreviations: OR Odds ratio, CI Confidence interval
  2. Model I: Adjusted for age and sex
  3. Model II: Adjust for variables that, when added to this model, changed in effect estimate of more than 10%, included the covariates in Model I plus stroke, CCI, time of risk, central venous catheter, enteral tube feeding, Barthel Index, and Morse Fall Scale
  4. Model III: Adjust for all of these variables, included the covariates in Model II plus adjusted for drinking status, smoking status, COPD, swallow disability, diabetes mellitus, peptic ulcer disease, moderate or severe renal disease, liver disease, congestive heart failure, solid tumor, admission category, indwelling urinary catheter, surgery, parenteral nutrition, other nosocomial infections, season of admission, antacids, sedatives, NSAID, systemic steroid, Inhaled steroid, and anticoagulant
  5. Note: a total score of≥3 indicated a patient is “at nutritional risk”
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