Table 2

Age, meals per day taken, gender, education, dental visit behaviour and caries experience according to risk to dental erosion of the respondents.

Risk to dental erosion

All

Yes*

No

p-value

Age (n = 514)

37.1 ± 6.0

36.5 ± 6.3

37.9 ± 5.5

0.008

No. of meals/day (n = 494)

5.4 ± 2.1

5.3 ± 2.0

5.5 ± 2.3

0.355

Gender (n = 520)

0.441

Male

36%

104 (37%)

82 (34%)

Female

64%

175 (63%)

159 (66%)

Education level (n = 517)

< 0.001

Primary or below

6%

13 (5%)

20 (9%)

Secondary

64%

163 (58%)

167 (70%)

Tertiary

30%

103 (37%)

51 (21%)

Dental visit (n = 499)

0.212

At least 1/yr

22%

59 (22%)

52 (23%)

Less than 1/yr

67%

176 (65%)

157 (69%)

Never

11%

36 (13%)

19 (8%)

Caries experience (n = 520)

0.086

Yes

79%

212 (76%)

198 (82%)

No

21%

67 (24%)

43 (18%)

* had at least 3 out of the 5 sign and symptoms asked

Chu et al. BMC Oral Health 2010 10:13   doi:10.1186/1472-6831-10-13