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Table 1 Sample distribution and toothache prevalence according the independent variables (confidence intervals – 95% CI).

From: Toothache and associated factors in Brazilian adults: a cross-sectional population-based study

Variables Sample Distribution Toothache
  n % Prevalence % 95 CI % **
Sex (n = 1,805)
Male 728 40.4 13.0 (10.5;15.6)
Female 1,077 59.6 21.4 (18.9;24.0)
Age group – years (n = 1,802)
20 – 29 611 34.0 22.1 (18.0;26.2)
30 – 39 433 24.0 19.9 (16.4;23.3)
40 – 49 458 25.4 13.5 (10.2;16.9)
50 – 59 300 16.6 14.3 (9.3;19.3)
Skin colour (n = 1,800)
White 1,117 62.0 15.9 (13.1;18.7)
Lighter-skinned blacks 515 28.6 20.4 (16.2;24.6)
Dark skinned blacks 112 6.2 25.0 (19.4;30.6)
Yellow 34 2.0 23.5 (9.2;37.8)
Amerindian 22 1.2 27.3 (6.9;47.6)
Per capita income-BMW a (n = 1,770)
1.59 – 19.74 440 24.8 11.1 (7.7;14.6)
0.89 – 1.58 468 26.4 16.7 (12.3;21.0)
0.60 – 0.88 439 24.8 17.8 (14.4;21.1)
0.02 – 0.50 423 24.0 27.4 (24.0;30.8)
Educational attainment-years (n = 1,786)
≥ 12 445 24.8 12.8 (8.9;16.7)
9 – 11 587 32.9 17.7 (14.3;21.1)
5 – 8 501 28.1 20.1 (16.3;24.0)
≤ 4 253 14.2 22.9 (16.2;29.6)
CAGE score (n = 1,805)
0 1,582 87.6 17.6 (15.6;19.6)
≥ 1 223 12.4 21.1 (15.2;26.9)
Smoking status (n = 1,802)
Never smoked 1,018 56.5 14.5 (12.4;16.6)
Ex-smoked 281 15.5 18.5 (14.2;22.8)
Current smoker 503 28.0 24.8 (20.9;28.8)
Consumption of cigarettes- Package year (n = 1,805)
Never smoked 1,305 72.3 15.4 (13.3;17.5)
<10 100 5.5 30.0 (20.0;40.0)
≥ 10 400 22.2 23.7 (19.4;28.1)
Number of natural teeth (n = 1,762)
≥ 20 1,243 70.4 18.4 (15.9;21.0)
10–19 354 19.9 16.4 (12.8;20.0)
<10 165 9.7 20.3 (14.0;26.0)
Type of dental service in the last attendance (n = 1,759)
Private 1,085 61.0 14.9 (12.4;17.5)
SUS – public 453 27.0 28.7 (24.0;33.4)
Others 221 12.0 12.7 (7.7;17.6)
Use of dental service in the last year (n = 1,786)
Yes 697 39.0 12.3 (10.3;14.4)
No 1089 60.1 21.9 (18.9;25.0)
Total (n = 1,805) 1,805 100.0 18.0 (16.0;20.1)
  1. Lages-SC, Brazil, 2007.
  2. * Brazilian Minimum Wage (worth of US$ 200,00).
  3. **confidence interval adjusted for the clustered sampling design.