Variables | Total No. of children | Dental erosion | Â | |
---|---|---|---|---|
 |  | No. of children | % | P |
Frequency of carbonated drinks* | Â | Â | Â | Â |
   < once a week | 936 | 243 | 26.0 | 0.046 |
   ≥once a week | 563 | 173 | 30.7 |  |
Frequency of sport drinks | Â | Â | Â | Â |
   < once a week | 1089 | 305 | 28.0 | 0.719 |
   ≥once a week | 410 | 111 | 27.1 |  |
Frequency of lemon tea | Â | Â | Â | Â |
   < once a week | 1102 | 310 | 28.1 | 0.585 |
   ≥once a week | 397 | 106 | 26.7 |  |
Frequency of succade | Â | Â | Â | Â |
   < once a week | 1160 | 314 | 27.1 | 0.275 |
   ≥once a week | 339 | 102 | 30.1 |  |
Frequency of fruits | Â | Â | Â | Â |
   < once a week | 180 | 52 | 28.9 | 0.716 |
   ≥once a week | 1319 | 364 | 27.6 |  |
Frequency of fruit juices | Â | Â | Â | Â |
   < once a week | 940 | 253 | 26.9 | 0.348 |
   ≥once a week | 559 | 163 | 29.2 |  |
Frequency of chewing gum | Â | Â | Â | Â |
   < once a week | 817 | 233 | 28.5 | 0.468 |
   ≥once a week | 682 | 183 | 26.8 |  |
Amount of acidic drinks intake | Â | Â | Â | Â |
   < 250 ml/week | 408 | 103 | 25.2 | 0.406 |
   250-1000 ml/week | 962 | 275 | 28.5 |  |
   > 1000 ml/week | 129 | 38 | 29.4 |  |
Drinking with straw or not | Â | Â | Â | Â |
   Drinking with straw | 475 | 138 | 29.2 | 0.444 |
   Drinking without straw | 1024 | 278 | 27.1 |  |
Method of drinking | Â | Â | Â | Â |
   Sucking or holding drinks in mouth | 328 | 81 | 24.7 | 0.162 |
   Drinking straight away | 1171 | 335 | 28.6 |  |
Frequency of drinks taken at night | Â | Â | Â | Â |
   Once or more monthly | 82 | 26 | 31.7 | 0.418 |
   Never/occasionally | 1417 | 390 | 27.5 |  |