Table 3 Multivariate results by Cox regression.

From: Threshold effect of prognostic nutritional index on mortality in geriatric hip fracture patients

Exposure

Crude model

Adjust model I

Adjust model II

PNI

0.92 (0.90, 0.94) < 0.0001

0.94 (0.93, 0.96) < 0.0001

0.95 (0.93, 0.97) < 0.0001

PNI tertile

 Low PNI group

1

1

1

 Medium PNI group

0.61 (0.51, 0.73) < 0.0001

0.67 (0.56, 0.80) < 0.0001

0.71 (0.59, 0.86) 0.0003

 High PNI group

0.39 (0.32, 0.48) < 0.0001

0.52 (0.42, 0.64) < 0.0001

0.56 (0.46, 0.69) < 0.0001

 P for trend

< 0.0001

< 0.0001

< 0.0001

  1. Data in the table: HR (95% CI).
  2. Outcome variate: Mortality.
  3. Exposure variates: PNI; PNI tertile; PNI tertile continuous.
  4. Adjust model I adjusted for age, sex.
  5. Adjust model II adjusted for age, sex, CHD, arrhythmia, ischemic stroke, cancer, dementia, hepatitis, time to operation, time to admission, and urea.
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