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Table 3 Multivariable logistic regression and linear regression analyses for the occurrence of postoperative delirium and length of stay

From: The geriatric nutrition risk index versus the mini-nutritional assessment short form in predicting postoperative delirium and hospital length of stay among older non-cardiac surgical patients: a prospective cohort study

 

Postoperative delirium

Length of stay

Adjusted OR (95% CI)a

P-value

β (95% CI)b

P-value

GNRI categoriesc

 No risk (>98)

Reference

 

Reference

 

 Low risk (92–98)

0.61 (0.26–1.43)

0.255

4.91 (2.43–7.39)

< 0.001

High risk (<92)

2.22 (0.92–5.37)

0.077

4.10 (0.95–7.25)

0.011

GNRI scoresd

0.96 (0.92–1.00)

0.077

−0.24 (−0.37 to − 0.11)

< 0.001

MNA-SF categoriesc

 Well nourished (12–14)

Reference

 

Reference

 

 At risk (8–11)

1.95 (0.86–4.39)

0.109

0.87 (−1.55 to 3.29)

0.48

 Malnourished (≤7)

4.06 (1.62–10.18)

0.003

4.23 (0.91–7.54)

0.013

MNA-SF scoresd

0.82 (0.72–0.92)

0.001

−0.52 (− 0.93 to − 0.11)

0.014

  1. OR odds ratio, CI confidence interval, GNRI Geriatric Nutritional Risk Index, MNA-SF Mini-Nutritional Assessment Short Form, CCI Charlson Comorbidity Index.
  2. Notes: a Adjusted for age, sex, CCI, depression, Barthel Index and preoperative pain in multivariable logistic regression model;
  3. b Adjusted for age, sex, Barthel Index and preoperative pain in linear regression model;
  4. c Modeled as categories variables;
  5. d Modeled as continuous variables
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BMC Geriatrics

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