Table 1.

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

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-BMWa (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)

Lages-SC, Brazil, 2007.

* Brazilian Minimum Wage (worth of US$ 200,00).

**confidence interval adjusted for the clustered sampling design.