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Table 4 Influencing factors of on-scene time in the generalized linear mixed model analysis

From: Factors associated with EMS on-scene time and its regional difference in road traffic injuries: a population-based observational study

Variables

Estimate

95% CI

P

Intercept

16.5

14.7 to 18.4

P<0.001

Fixed effects

 

Elderly age

1.51

1.23 to 1.78

P<0.001

 

Sex

   
  

male

0.18

-0.07 to 0.42

P=0.151

  

female

Ref

  
 

High-risk injury

2.78

2.19 to 3.38

P<0.001

 

Number of EMS phone calls until hospital acceptance

5.69

5.50 to 5.88

P<0.001

 

Time Category

   
  

08:00-23:00

ref

  
  

00:00-07:00

1.19

0.80 to 1.60

P<0.001

 

Holiday

0.42

0.16 to 0.68

P=0.002

 

Consciousness level of eye opening by pain stimuli or no response

-1.99

-3.46 to -0.95

P=0.014

 

SBP <90 mmHg

-0.14

-0.77 to 0.49

P=0.666

 

HR <50 or ≥ 120 beats/min

0.25

-0.29 to 0.79

P=0.357

 

RR <10 or ≥ 30 breaths/min

-0.4

-0.94 to 0.14

P=0.142

Random effects

 

Area

   
  

Seiwa

-1.01

-2.19 to 0.17

P=0.094

  

Chuwa

-0.94

-2.12 to 0.23

P=0.114

  

Tohwa

1.36

0.18 to 2.54

P=0.024

  

Nanwa

0.6

-0.61 to 1.80

P=0.330

AIC

 

136076.109

   

BIC

 

136091.803

   
  1. SBP systolic blood pressure, DBP diastolic blood pressure, HR heart rate, RR respiratory rate