Table 3 Results of Cox proportional-hazards model

Cause

0.213

 Nutrient deficiency

1.84

0.76-4.48

0.179

 Anaemia of chronic disease

2.47

1.05-5.82

0.038

 Renal anaemia

2.31

0.93-5.74

0.072

 Other causes

2.94

1.27-6.82

0.012

 Multiple causes

2.09

0.54-8.07

0.285

 Unknown

Reference

Severity (haemoglobin)

0.476

 Moderate

1.41

0.64-3.12

0.396

 Severe

0.62

0.19-2.04

0.433

 Mild

Reference

Gender

0.287

 Female

0.77

0.47-1.25

0.287

 Male

Reference

Age (years)

1.06

1.03-1.09

<0.001

Date of inclusion (years)

0.927

0.82-1.04

0.213