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Table 1 Control- and case Group Demographics and Mean D and DMFT Scores of the Case Group

From: A case-control study of determinants for high and low dental caries prevalence in Nevada youth

Variable Control Group Case Group D-Score† Test Statistic DMFT† Test Statistic
  N N Mean (SE) D-Score Mean (SE) DMFT
Sex       
   Male 1086 953 2.84 (0.10) 1.41 6.36 (0.14) 11.222**
   Female 959 1171 3.04 (0.09)   7.01 (0.04)  
Age‡       
   12-15 1654 1346 2.77 (0.08) 3.06* 6.66 (0.09) 31.250**
   16-19 388 781 3.21 (0.12)   7.45 (0.07)  
Dental Insurance       
   Insured 1176 1353 2.14 (0.8) 15.18** 6.87 (0.07) 19.89**
   Not Insured 383 678 4.79 (0.12)   8.03 (0.06)  
Race Group‡       
   White, Non-Hispanic 1296 842 2.19 (0.10)± 10.13** 6.86 (0.08) 13.89**
   Black, Non-Hispanic 173 278 2.99 (0.12)   6.68 (0.12)  
   Hispanic 573 1007 3.16 (0.11)   7.14 (0.10)  
Fluoridation       
   Fluoridation 1324 580 1.72 (0.07) 15.55** 6.43 (0.08) 14.20**
   Without Fluoridation 721 1544 3.78 (0.09)   7.30 (0.07)  
Second Hand Smoke       
   Exposed 565 871 3.52 (0.11) 7.13* 7.23 (0.06) 6.09*
   Non-exposed 1470 1244 2.03 (0.09)   6.74 (0.10)  
Smoking Status       
   Currently Smoke 215 372 3.53 (0.14) 5.03* 7.43 (0.12) 23.65**
   Currently do not Smoke 1177 1204 2.60 (0.09)   6.33 (0.05)  
Applied Sealants       
   No Sealants 752 1153 3.63 (0.10) 11.29** 7.36 (0.12) 7.69*
   Sealants 1290 974 2.11 (0.08)   6.45 (0.14)  
  1. Note: *p < 0.05; ** p < 0.01; †D-Score and DMFT Scores computed on the 30% with the highest DMFT Scores; ‡ Groups as Defined in NHANES, 2007;
  2. ± Bonferroni post hoc results indicate differences between this group and the other 2 groups.