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. 2010 Nov 30;10:87. doi: 10.1186/1471-2431-10-87

Table 1.

Frequency distribution of socio-economic and oral health-related behaviours in the main survey and clinical sub-study

Variable Main questionnaire survey (N = 2412) Clinical sub-study (N = 1077)
Age % (n) % (n)
12-15 years 60.6 (1395) 69.8 (752)
16-21 years 39.4 (907) 30.2 (325)
Sex
Male 47.9 (1154) 46,6 (502)
Female 52.1 (1256) 53,4 (575)
Residence
Urban 48.2 (1163) 49.1 (529)
Rural 51.8 (1249) 50.9 (548)
Mother's education:
Low (primary school and below) 65.0 (1247) 68.7 (590)
High (secondary school and above) 35.0 (672) 31.3 (269)
Father's education:
Low (primary school and below) 54.7 (938) 57.7 (445)
High (secondary school and above) 45.3 (778) 42.3 (326)
Wealth index:
1st quartile (Most poor) 22.9 (517) 23.1 (233)
2nd quartile 29.2 (661) 33.7 (340)
3rd quartile 23.0 (521) 21.5 (217)
4th quartile (Least poor) 24.9 (562) 23.1 (219)
Family SES
High 76.5 (1827) 77.5 (825)
Moderate/Low 23.5 (560) 22.5 (239)
Tooth brushing
Not regularly 23.5 (562) 25.5 (273)
Regularly 76.5 (1833) 74.5 (796)
Parents afford dental care
Yes 48.1 (1143) 49.9 (530)
No 51.9 (1234) 50.1 (532)
Dental visit past 2 years
Yes 12.6 (299) 11.3 (120)
No 87.4 (2081) 88.7 (943)
Sugar-sweetened soft drinks intake
Never 46.8 (1116) 45.8 (485)
At least on weekly basis 53.2 (1267) 54.2 (575)
Tried smoking
Yes 5.8 (138) 5.6 (60
No 94.2 (2261) 94.4 (1009)
Having Oral impact on Daily performance (OIDP)
OIDP = 0 (no impact) 51.8 (1204) 49.3 (509)
OIDP > 0 (has impacts 48.2 (1122) 50.7 (524)
Oral hygiene status
Good oral hygiene (OHI-S ≤ 1) 55.2 (594)
Poor oral hygiene (OHI-S > 1) 44.8 (483)

(The total numbers in the different categories do not add up to 2,412 in the main questionnaire survey and to 1,077 in the clinical sub study due to missing values)