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Table 1 Distribution of personal and demographic data with participants’ DMFTa levels and caries free prevalence

From: Caries prevalence among 18 years old, an epidemiological survey in Israel

  N (%) DMFT (SDb) P value (t test) Caries Free N (%) P value (χ2 test)
No Yes
Gender    0.879    0.889
Male 395 (58.4) 1.95 (2.75)   213 (53.9) 182 (46.1)  
Female 281 (41.6) 1.97 (2.55)   150 (53.4) 131 (46.6)  
Participant’s Education (has matriculation diploma)    0.090    0.132
Yes 559 (80.1) 1.86 (2.63)   290 (51.9) 269 (48.1)  
No 139 (19.9) 2.29 (2.82)   82 (59.0) 57 (41.0)  
Mother’s Education    < 0.001    0.002
Academic 322 (47.7) 1.49 (2.23)   213 (53.9) 182 (46.1)  
Else 353 (52.3) 2.30 (2.86)   150 (53.4) 131 (46.6)  
Father’s Education    0.002    0.010
Academic 297 (45.2) 1.55 (2.38)   207 (57.5) 153 (42.5)  
Else 360 (54.8) 2.18 (2.72)   141 (47.5) 156 (52.5)  
Country of Birth    0.013    0.679
Israel 640 (91.3) 1.87 (2.61)   339 (53.0) 301 (47.0)  
Other 61 (8.7) 2.75 (3.16)   34 (55.7) 27 (44.3)  
Current Smoker    0.003    0.013
Yes 139 (19.9) 2.55 (3.11)   87 (62.6) 52 (37.4)  
No 560 (80.1) 1.80 (2.54)   285 (50.9) 275 (49.1)  
Total   1.95 (2.67)   374 (53.3) 328 (46.7)  
  1. aDecayed, Missing or Filled Teeth
  2. bStandard Deviation