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Table 1 Frequency distribution of socio-economic and oral health-related behaviours in the main survey and clinical sub-study

From: Socio-demographic and behavioural correlates of oral hygiene status and oral health related quality of life, the Limpopo - Arusha school health project (LASH): A cross-sectional 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)
  1. (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)