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Table 3 Multivariable regression analysis of medical cost

From: Temporal trends of medical cost and cost-effectiveness in sepsis patients: a Japanese nationwide medical claims database

Variable

Coefficienta

95% CI

p-value

Age -per year

0.998

0.997–0.999

< 0.0001

Sex (male)

1.047

1.044–1.049

< 0.0001

Number of chronic diseases

1.078

1.075–1.081

< 0.0001

ICU admission

1.740

1.733–1.745

 0.0001

Surgery

2.138

2.133–2.142

 

Length of hospital stay -per day

1.003

1.002–1.004

< 0.0001

Site of infection

 Abdominal

Reference

 

< 0.0001

 Blood

2.028

1.954–2.103

< 0.0001

 Bone and soft tissue

1.186

1.177–1.193

< 0.0001

 Heart

1.620

1.595–1.644

< 0.0001

 Meninges/brain/spinal cord

1.482

1.465–1.499

< 0.0001

 Respiratory

1.096

1.091–1.101

< 0.0001

 Urogenital

1.049

1.044–1.056

< 0.0001

 Multiple

1.324

1.321–1.330

< 0.0001

 Unknown

1.419

1.412–1.425

< 0.0001

Admission year

0.966

0.966–0.968

< 0.0001

  1. CI confidence interval, ICU intensive care unit
  2. a100 × (coefficient − 1) shows percent change in medical costs