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Table 4 Multilinear regression analysis of total hospitalization costs

From: DRG payment for male reproductive system malignant tumor surgery: analysis and recommendations on resource consumption in a tertiary hospital in China

 

β

cost increase (%)

t value

P value

VIF

Age (years)

    

1.032

<65

Reference

    

≥65

1217.46

2.56

5.471

< 0.001

 

LOS (days)

    

1.057

≤7

Reference

    

>7

7008.74

14.73

34.626

< 0.001

 

Number of clinical visits

    

1.020

1

Reference

    

2

996.23

2.09

4.930

< 0.001

 

≥3

284.08

0.60

0.844

0.398

 

Insurance type

    

1.089

full self-pay

Reference

    

URMI

1428.07

3.00

4.405

< 0.001

 

UEMI

1118.97

2.35

3.486

0.001

 

Robot-assisted surgery

    

1.065

no

Reference

    

yes

37420.83

78.64

190.241

< 0.001

 

Hypertension

    

1.034

no

Reference

    

yes

398.83

0.84

2.051

0.040

 

Diabetes

    

1.035

no

Reference

    

yes

88.04

0.18

0.335

0.738

 

TNM

    

1.010

I

Reference

    

II

99.21

0.21

0.396

0.692

 

III

1137.36

2.39

2.678

0.007

 

IV

2867.91

6.03

3.245

0.001

 
  1. LOS: length of stay;URMI: urban resident medical insurance;UEMI: urban employee medical insurance;TNM: tumour-node-metastasis;VIF: variance inflation factor.cost increase(%):β/reference group mean cost×100
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