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Table 4 The Cox’s proportional hazard analysis of the influence of admission handgrip-muscle strength and other prognostic variables on 1-year mortality

From: Impact of poor muscle strength on clinical and service outcomes of older people during both acute illness and after recovery

Variable

Regression coefficient

Standard error

P value

Hazard ratio for unit change

95.0% CI

Lower

Upper

Age (years)

.052

.027

.056

1.053

.999

1.111

Gender (male/female)

−1.142

.324

.000

.319

.169

.602

Barthel Score (0–20)

−.050

.032

.122

.951

.893

1.013

Chronic disease

.164

.099

.097

1.179

.971

1.431

Smoking (Never, Ex, Current)

.474

.225

.035

1.607

1.033

2.500

Body mass index

−.033

.038

.393

.968

.898

1.043

C-reactive protein (mg/L)

−.001

.002

.676

.999

.994

1.004

Serum albumin (g/L)

−.110

.038

.004

.895

.831

.965

Handgrip strength (kg)

−.638

.461

.166

.528

.214

1.304