Research Article

Association between Single Nucleotide Polymorphisms in Vitamin D Receptor Gene Polymorphisms and Permanent Tooth Caries Susceptibility to Permanent Tooth Caries in Chinese Adolescent

Table 2

Demographic characteristics of the study subjects.

CasesControls value
()()

Mean age
Gender (%)0.6400.424
Female98 (49)106 (53)
Male102 (51)94 (47)
BOP (+)28 (14.0)23 (11.5)0.5620.454
VM-value (+)41 (20.5)36 (18.0)0.4020.526
Brushing time
 <3 min171 (85.5)165 (82.5)0.7000.413
 ≥3 min29 (14.5)35 (17.5)
Brushing frequency
 <2 times a day95 (47.5)91 (45.5)0.1610.688
 ≥2 times a day105 (52.5)109 (54.5)

Note. BOP: bleeding on probing; VM-value: Volpe Manhold Index scores.