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Table 5 Multivariable analysis of LOS for RTI victims included in INTRD, 2000-2004

From: Factors affecting hospital length of stay and hospital charges associated with road traffic-related injuries in Iran

LOS*

β

P

95% CI

β

P

95% CI

Sex

Female

−0.058

0.00

−0.088

−0.027

−0.052

0.00

−0.081

−0.022

Male**

0

   

0

   

Age groups

<= 4

−0.056

0.15

−0.133

0.021

    

5-14

−0.017

0.52

−0.067

0.034

    

15 - 29

0.005

0.82

−0.042

0.053

    

30 - 44

0.018

0.46

−0.03

0.066

    

45 - 59

−0.001

0.98

−0.05

0.048

    

60+**

0

       

Education

Illiterate

0.157

0.00

0.097

0.218

0.141

0.00

0.085

0.197

Elementary/Intermediate

0.129

0.00

0.074

0.183

0.121

0.00

0.069

0.174

High school

0.057

0.04

0.003

0.111

0.056

0.04

0.002

0.11

University**

0

   

0

   

Occupation

Retired

−0.091

0.01

−0.161

−0.021

−0.082

0.01

−0.145

−0.02

Armed forces

−0.045

0.22

−0.117

0.026

−0.038

0.30

−0.108

0.033

White collar worker

−0.031

0.12

−0.07

0.008

−0.02

0.28

−0.056

0.016

Blue collar worker

0.031

0.07

−0.002

0.065

0.046

0.00

0.017

0.076

Farmer

0.021

0.53

−0.045

0.087

0.036

0.27

−0.028

0.099

Others**

0

   

0

   

Road user type†

Pedestrian

0.096

0.00

0.037

0.155

0.1

0.00

0.041

0.158

Car occupant

0.044

0.16

−0.018

0.107

0.048

0.12

−0.013

0.11

Motorcyclist

0.079

0.01

0.019

0.139

0.083

0.01

0.024

0.143

Bicycle rider**

0

   

0

   

Medical insurance

No

−0.108

0.00

−0.13

−0.086

−0.109

0.00

−0.13

−0.087

Yes**

0

   

0

   

ISS

1-7

−0.194

0.00

−0.228

−0.16

−0.196

0.00

−0.23

−0.162

8-12

0.022

0.23

−0.014

0.058

0.022

0.23

−0.014

0.058

13+**

0

   

0

   

GCS

3-8

0.151

0.00

0.082

0.22

0.151

0.00

0.082

0.219

9-12

0.132

0.00

0.078

0.186

0.133

0.00

0.079

0.186

13-15**

0

   

0

   

Died in hospital

No

0.603

0.00

0.529

0.676

0.604

0.00

0.531

0.677

Yes**

0

   

0

   
  1. RTI: Road traffic injury, INTRD: Iranian National Trauma Registry Database, LOS: length of stay, ISS: Injury Severity Score, GCS: Glasgow Coma Scale.
  2. *Model fitting information (final model): Deviance/chi-Square = 1154.949 (with d.f. of 6265 and P = 0.184).
  3. **Reference group.
  4. † The group “others” in road user type were not included in the analysis.