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)