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Table 2 Characteristics of inappropriate use of emergency service. Pelotas, Brazil, 2004

From: Demand for emergency health service: factors associated with inappropriate use

Variables

N

Prevalence (%)

Crude PR (95% CI)

P

Shift during which the ER visit took place

    

Morning (7 am – 1 pm)

416

27.9

1.46 (1.02 – 2.10)

0.04

Afternoon (1 pm – 7 pm)

556

24.6

1.29 (0.90 – 1.85)

0.16

Night (7 pm – 1 am)

522

22.2

1.16 (0.81 – 1.68)

0.41

Daybreak (1 am – 7 am)

152

19.1

1.00

 

Time taken from the onset of symptoms to arrival in the ER

   

<0.001*

<1 day

670

14.8

1.00

 

1 – 10 days

777

30.2

2.04 (1.66 – 2.52)

 

11 days or more

198

32.3

2.18 (1.66 – 2.87)

 

Time in the waiting room

   

<0.001*

Up to 5 minutes

663

16.4

1.00

 

6 – 15 minutes

486

26.5

1.61 (1.29 – 2.03)

 

16 – 30 minutes

312

31.1

1.89 (1.49 – 2.40)

 

31 minutes or more

178

33.7

2.05 (1.57 – 2.68)

 
  1. PR: prevalence ratio, ER: Emergency Room, CI: confidence interval, * Test for linear trend