Fig. 2From: Do preterm-born adolescents have a poorer oral health-related quality of life?Questionnaire of the relationships between Oral Health Impact Profile (OHIP-14) and independent variables included in the present survey of extremely- or very preterm and full-term adolescents at 12–14 and 17–19 years of age. *Items included in questionnaire at both 12–14 and 17–19 years of age. **Items included in questionnaire at 17–19 years of ageBack to article page