Table 2

Differences in children’s characteristics by untreated caries status
Variable No caries (n = 2333) Caries (n = 1155) Difference (P value)
Age – Mean (range) 9.32 (5–13) 9.32 (6–13) p = 0.95Ŧ
Gender (n = 3488)
 Male 1158 (50%) 552 (48%) p = 0.456
 Female 1175 (50%) 603 (52%) χ2 (2df) = 1.57
White Race vs Minority race/ethnicity (n = 3379)*
 White 1730 (77%) 758 (68%) p ≤ 0.001
 Minority race/ethnicity 532 (23%) 359 (32%) χ2 (2df) = 28.62
Area of Residence (n = 3300)*
 Metropolitan 952 (57%) 627 (42%) p ≤ 0.001
 Non-metropolitan 1277 (43%) 444 (58%) χ2 (1df) = 72.68
 Missing
Insurance Status (n = 3428)*
 No insurance 356 (15%) 228 (20%) p ≤ 0.001
 Govt or Private insurance 1949 (85%) 895 (80%) χ2 (3df) = 74.86
Has Visited Dentist (n = 3488)
 Yes 2201 (94%) 1015 (88%) p ≤ 0.001
 No 132 (6%) 140 (12%) χ2 (1df) = 44.88
Parent Assessment (n = 3472)*
 Fair/Poor Oral Health 650 (28%) 571 (50%) p ≤ 0.001
 Good Oral Health 1670 (72%) 581 (50%) χ2 (1df) = 156.77
 Missing

* = some parent reported data missing.

Ŧ = Independent t- test.

χ2 = Chi-Square test.

df = degrees of freedom.

Kandel et al.

Kandel et al. BMC Oral Health 2012 12:38   doi:10.1186/1472-6831-12-38

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