Table 6. Regression coefficients derived from regression: Caries experience (d3t, D3T) as dependent variable and environmental or behavioural risk factors as independent variables.
| Age 6 yr (N = 744) | Age 9 yr (N = 789) | Age 12 yr (N = 1201) | |||||||
| d3t | D3T | D3T | |||||||
| RC | 95% CI | p | RC | 95% CI | p | RC | 95% CI | P | |
| Type of health insurance | NI | ||||||||
| State aid | |||||||||
| Basic | 0.59 | −0.43 1.62 | ns | ||||||
| Private | −1.02 | −1.99–0.05 | <0.05 | ||||||
| Frequency of tooth brushing | |||||||||
| ≥1/day vs <1/day | −0.34 | −0.56 −0.13 | <0.01 | −0.35 | −0.64 −0.05 | <0.05 | |||
| Usual drinks when thirsty | |||||||||
| Sugared drinks vs water | 0.76 | 0.02 1.52 | <0.05 | ||||||
| Cultural or Ethnic group | NI | NI | |||||||
| Kanak | |||||||||
| European, Asian and others | −0.79 | −1.35 −0.24 | <0.01 | ||||||
| Caledonian | −0.02 | −0.57 0.16 | ns | ||||||
| Polynesian | −0.23 | −0.68 0.22 | ns | ||||||
| Dental sealants on permanent molars | |||||||||
| At least one sealant vs Absence | −1.10 | −1.50 −0.70 | <0.001 | ||||||
| Self-perception of Oral Health | NI | ||||||||
| Oral health problems vs No problem | 0.68 | 0.42 0.95 | 0.001 | ||||||
| Number of posterior functional units (PFU) | NI | ||||||||
| PFU<4 | |||||||||
| 4≤PFU<6 | −0.30 | −0.62 0.02 | ns | ||||||
| PFU≥6 | −0.51 | −0.84 − 0.18 | <0.01 | ||||||
| Chewing difficulties | NI | ||||||||
| Food impossible to chew | |||||||||
| Food difficult to chew | −0.43 | −0.91 0.05 | ns | ||||||
| No difficulties | −0.42 | −0.80 −0.35 | <0.05 | ||||||
Other non-significant variables included in the models were not presented here. These were: for the 6 yrs group: sex, region, type of school, mother employment status; for the 9 yrs group: sex, region, type of school, mother and father employment status; for the 12 yrs group: sex, region, type of school, dental fear, smoking status.
N: Number, CI: confidence interval, NI: not investigated, ns: not significant