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Table 5 Association between erosive experience (total BEWE ≥ 1) 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 291 134 (46) 157 (54) 1 1 1
  PES 40 9 (23) 31 (77) 2.9 (1.4–6.4) 2.2 (1.0–5.2) 2.2 (0.9–5.1)
Area of residence Rural 17 4 (24) 13 (76) 1 1 1
  Urban 314 139 (44) 175 (56) 0.4 (0.1–1.2) 0.4 (0.1–1.4) 0.4 (0.1–1.3)
Sex1 Female 174 78 (45) 96 (55) 1 Not included Not included
  Male 157 65 (41) 92 (59) 1.2 (0.7–1.8)   
Dental biofilm No visible 247 118 (48) 129 (52) 1 1 1
  Visible 84 25 (30) 59 (70) 2.2 (1.3–3.7) 1.8 (1.0–3.3) 1.7 (0.9–3.1)
ICDAS 4–6 carious lesions No 285 132 (46) 153 (54) 1 1 Not included
  Yes 46 11 (24) 35 (76) 2.7 (1.3–5.6) 1.4 (0.6–3.1)  
ICDAS 1–6 carious lesions No 172 90 (52) 82 (48) 1 Not included 1
  Yes 159 53 (33) 106 (67) 2.2 (1.4–3.4)   1.6 (1.0–2.47)
Fluoride toothpaste1 No 61 34 (56) 27 (44) 1 1 1
  Yes 270 109 (40) 161(60) 1.9 (1.1–3.3) 1.9 (1.0–3.6) 1.9 (1.0–3.7)
Dentist control during the past year 1 No 73 32 (44) 41 (56) 1 Not included Not included
  Yes 258 111 (43) 147 (57) 1.0 (0.6–1.7)   
Acid reflux/repeated vomiting 1 No 295 130 (44) 165 (56) 1 Not included Not included
  Yes 36 13 (36) 23 (64) 1.4 (0,7–2.9)   
Daily acidic beverage No 270 135 (50) 135 (50) 1 1 1
  Yes 61 8 (13) 53 (87) 6.6 (3.0–14.5) 4.8 (2.1–10.9) 4.5 (2.0–10.2)
Daily energy/sports drinks1 No 326 142 (44) 184 (56) 1 Not included Not included
  Yes 5 1 (20) 4 (80) 3.1 (0.3–27.9)   
Daily aicidic sweets No 299 140 (47) 159 (53) 1 1 1
  Yes 32 3 (9) 29 (91) 8.5 (2.5–28.5) 2.9 (0.8–10.4) 2.9 (0.8–10.5)
Daily acid fresh fruits 1 No 277 124 (45) 153 (55) 1 Not included Not included
  Yes 54 19 (35) 35 (65) 1.5 (0.8–2.7)   
Retained drink in the mouth after drinking No 298 137 (46) 161 (54) 1 1 1
  Yes 33 6 (18) 27 (82) 3.8 (1.5–9.6) 2.9 (1.1–7.7) 2.9 (1.1–7.9)
Daily vitamin C No 298 123 (41) 175 (59) 1 1 1
  Yes 33 20 (61) 13 (39) 0.5 (0.2–1.0) 0.5 (0.2–1.0) 0.5 (0.2–1.1)