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Table 4 Variables associated with inappropriate use of emergency services (patients with 50+ 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
Second level       
Level of education – years of formal education     0.06*   0.06*
0 – 4 386 18.4 1.00   1.00  
5 – 8 167 23.4 1.27 (0.90 – 1.79)   1.27 (0.90 – 1.79)  
9 or more 51 27.5 1.49 (0.91 – 2.44)   1.49 (0.91 – 2.44)  
Third level       
Self-reported chronic diseases**     0.02   0.03
No 92 29.4 1.57 (1.09 – 2.26)   1.50 (1.03 – 2.17)  
Yes 513 18.7 1.00   1.00  
Fourth level       
Social support     0.009   0.05
No 250 25.6 1.52 (1.11 – 2.08)   1.40 (1.01 – 1.95)  
Yes 355 16.9 1.00   1.00  
  1. PR: prevalence ratio, CI: confidence interval, * Test for linear trend, ** Self-reported chronic diseases: diabetes, arterial hypertension, bronchitis, asthma, emphysema, heard disease, rheumatism and others. Variables in the first level and variables not presented in the third and fourth level had p-value > 0,2 and were excluded from the final model