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. 2021 Mar 9;2021:8866554. doi: 10.1155/2021/8866554

Table 3.

Distribution of study participants in relation to knowledge about causes, symptoms, and prevention of dental caries and gingival disease by sociodemographic characteristics in percentages.

Oral condition Age group (years) Gender Residence Standard Parents' education #
11–12 years (n = 172) 13–14 years (n = 237) Male (n = 193) Female (n = 216) Urban (n = 209) Rural (n = 200) Lower (n = 127) Upper (n = 282) ≤1° (n = 149) ≥2° (n = 260)
Dental caries
Causes 92.4 92.0 93.8 90.7 94.3 90.0 89.8 93.3 87.2 95.0 ∗∗∗
Symptoms 65.1 77.6 ∗∗ 72.5 72.2 64.1 81.0 ∗∗∗ 76.4 70.6 83.2 66.2 ∗∗∗
Prevention 84.9 86.1 88.6 82.9 89.0 82.0  80.3 87.9  79.2 89.2 ∗∗

Gingival disease
Causes 90.7 94.1 92.7 92.6 89.8 94.0 91.9 93.5 94.6 91.5
Symptoms 83.7 86.5 86.5 84.3 84.2 86.5 86.6 84.8 86.6 84.6
Prevention 94.2 90.3 93.2 90.7 95.2 88.5  90.6 92.6 89.9 93.1

≤1°: primary school education and below; ≥2°: secondary school education and above. Statistically significant differences between the categories:  ∗∗∗ = P < 0.001,  ∗∗ = P < 0.01, and   = P < 0.05. No asterisk: statistically not significant (NS).