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Table 4 Association between erosive experience (total BEWE ≥ 3) and independent variables. Unadjusted and adjusted logistic regression analyses

From: Dental erosion in French adolescents

Independent variables number Erosive experience (Total BEWE ≥ 3)
No n (%) Yes n (%) Unadjusted OR (95 %) Adjusted OR (95 %) Adjusted OR (95 %)
Socio-economic category No PES 291 186 (64) 105 (36) 1 1 1
  PES 40 16 (40) 24 (60) 2.7 (1.4–5.2) 2.2 (1.1–4.7) 2.2 (1.1–4.7)
Area of residence Rural 17 6 (35) 11 (65) 1 1 1
  Urban 314 196 (62) 118 (38) 0.3 (0.1–0.9) 0.4 (0.1–1.1) 0.3 (0.1–1.0)
Sex1 Female 174 110 (63) 64 (37) 1 Not included Not included
  Male 157 92 (59) 65 (41) 1.2 (0.8–1.9)   
Dental biofilm No visible 247 163 (66) 84 (34) 1 1 1
  Visible 84 39 (46) 45 (55) 2.2 (1.4–3.7) 1.8 (1.1–3.3) 1.8 (1.0–3.1)
ICDAS 4–6 carious lesions No 285 183 (64) 102 (36) 1 1 Not included
  Yes 46 19 (41) 27 (59) 2.6 (1.4–4.8) 1.3 (0.6–2.7)  
ICDAS 1–6 carious lesions No 172 118 (69) 54 (31) 1 Not included 1
  Yes 159 84 (53) 75 (47) 2.0 (1.3–3.1)   1.4 (0.9–2.4)
Fluoride toothpastec 1 No 61 41 (67) 20 (33) 1 Not included Not included
  Yes 270 161 (60) 109 (40) 1.4 (0.8–2.5)   
Dentist control during the past year 1 No 73 42 (57) 31 (43) 1 Not included Not included
  Yes 258 160 (62) 98 (38) 0.8 (0.5–1.4)   
Acid reflux/repeated vomiting 1 No 295 181 (61) 114 (39) 1 Not included Not included
  Yes 36 21 (58) 15 (42) 1.1 (0,6–2.3)   
Daily acidic beveragea No 270 184 (68) 86 (32) 1 1 1
  Yes 61 18 (29) 43 (71) 5.1 (2.8–9.4) 3.8 (2.0–7.3) 3.6 (1.9–7.0)
Daily energy/sports drinksb 1 No 326 200 (61) 126 (39) 1 Not included Not included
  Yes 5 2 (40) 3 (60) 2.4 (0.4–14.5)   
Daily aicidic sweets No 299 195 (65) 104 (35) 1 1 1
  Yes 32 7 (22) 25 (78) 6.7 (2.8–16.0) 2.9 (1.1–7.5) 3.0 (1.2–7.6)
Daily acid fresh fruits 1 No 277 172 (62) 105 (38) 1 Not included Not included
  Yes 54 31 (57) 23 (43) 1.3 (0.7–2.4)   
Retained drink in the mouth after drinking No 298 189 (63) 109 (37) 1 1 1
  Yes 33 13 (39) 20 (61) 2.7 (1.3–5.6) 1.8 (0.8–4.2) 1.9 (0.8–4.3)
Daily vitamin C No 298 178 (60) 120 (40) 1 Not included Not included
  Yes 33 24 (73) 9 (27) 0.6 (0.3–1.2)   
  1. All consumers drank acidic beverages during and between meals: 94 % of them were sugared and the most consumed beverages were Cola (89 %)a and Powerade (71 %)b. 1 (9.4 %) or 2 (90.3 %) daily tooth brushingc. ICDAS 4–6 or ICDAS 1–6 carious lesions were included in the adjusted logistic regression analyses. 1p > 0.1