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Table 2 Cox regression model showing variables associated with 28-day mortality

From: Calcium supplementation improves clinical outcome in intensive care unit patients: a propensity score matched analysis of a large clinical database MIMIC-II

Variables

Hazard ratio

Standard error

P value

Lower limit (95 % CI)

Upper limit (95 % CI)

Calcium supplementation

0.509913

0.023411

<0.001

0.466033

0.557925

Sex

0.838076

0.038628

<0.001

0.765685

0.917312

Age

1.020377

0.001796

<0.001

1.016864

1.023903

SAPSI-1 score

1.093642

0.006636

<0.001

1.080713

1.106726

Sofa score

1.074119

0.008373

<0.001

1.057834

1.090655

Ca2+ on ICU entry

0.201529

0.040239

<0.001

0.136263

0.298054

Asian population

1.130669

0.124779

0.266

0.910748

1.403695

Congestive heart failure

1.266334

0.064469

<0.001

1.146076

1.399211

Hypertension

1.041436

0.052815

0.423

0.942899

1.150271

Chronic pulmonary disease

1.081551

0.062353

0.174

0.965993

1.210932

Renal failure

0.7697

0.074854

0.007

0.636123

0.931326

Liver disease

1.600751

0.138914

<0.001

1.350381

1.897541

Alcohol abuse

1.258592

0.140858

0.04

1.010697

1.56729

Serum creatinine on ICU entry

1.114954

0.016701

<0.001

1.082696

1.148173

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