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Table 3 Variables associated with inappropriate use of emergency services (15 – 49 years-old): crude and multivariable analysis. Pelotas, Brazil, 2004

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

Variables

N

Prevalence (%)

Crude PR (95% CI)

P

Adjusted PR (95% CI)

P

First level

      

Sex

   

<0.001

 

<0.001

Male

513

20.9

1.00

 

1.00

 

Female

526

31.8

1.52 (1.23 – 1.88)

 

1.52 (1.23 – 1.88)

 

Skin color

   

0.09

 

0.11

White

793

25.1

1.00

 

1.00

 

Non-white

246

30.5

1.21 (0.97 – 1.52)

 

1.20 (0.96 – 1.50)

 

Marital status

   

0.15

 

0.12

Living without a partner

588

28.6

1.16 (0.95 – 1.42)

 

1.17 (0.96 – 1.44)

 

Living with a partner

452

24.7

1.00

 

1.00

 

Second level

      

Level of education – years of formal education

   

0.13*

 

0.15*

0 – 4

210

21.0

1.00

 

1.00

 

5–8

493

28.0

1.34 (0.99 – 1.80)

 

1.35 (1.00 – 1.81)

 

9 or more

336

27.5

1.31 (0.96 – 1.80)

 

1.31 (0.95 – 1.80)

 

Third level

      

Fourth level

      

Visited PHC

   

0.02#

 

0.17#

Last year

517

30.4

1.00

 

1.00

 

Longer than one year

234

23.5

0.77 (0.59 – 1.01)

0.06

0.79 (0.60 – 1.03)

0.08

Never went there

283

21.6

0.71 (0.55 – 0.92)

0.01

0.82 (0.57 – 1.17)

0.27

Regular doctor

   

0.19

 

0.12

No

243

27.4

1.19 (0.92 – 1.54)

 

1.23 (0.95 – 1.60)

 

Yes

797

23.1

1.00

 

1.00

 

The reason for choosing the emergency service was that he/she was unable to make an appointment elsewhere

   

0.009

 

0.04

No

964

25.4

1.00

 

1.00

 

Yes

76

38.2

1.50 (1.10 – 2.04)

 

1.38 (1.01 – 1.89)

 

Number of shifts per day at the PHC service

   

0.004#

 

0.009#

One shift

116

31.9

1.64 (1.11 – 2.42)

0.01

1.63 (1.11 – 2.40)

0.01

Two shifts

548

29.9

1.54 (1.13 – 2.10)

0.006

1.53 (1.12 – 2.08)

0.007

Three shifts

201

19.4

1.00

 

1.00

 

Did not use the PHC

125

18.6

0.96 (0.60 – 1.52)

0.85

0.99 (0.61 – 1.61)

0.97

Doctor at the regular place of care refuses to attend without previous appointment

   

0.009

 

0.04

No

947

25.4

1.00

 

1.00

 

Yes

55

40.0

1.58 (1.12 – 2.22)

 

1.44 (1.02 – 2.02)

 

Subject was referred by a health worker

   

0.03

 

0.05

No

866

27.6

1.44 (1.04 – 1.99)

 

1.40 (1.01 – 1.94)

 

Yes

172

19.2

1.00

 

1.00

 
  1. PR: prevalence ratio, CI: confidence interval, * Test for linear trend, # Test for heterogeneity, PHC: primary health care, Variables in the third level and variables not presented in the first and fourth level had p-value > 0,2 and were excluded form the final model