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Table 1 Baseline characteristics of the study groups of extremely preterm adolescents (EPT), very preterm adolescents (VPT), and full term-born adolescents answering the questionnaire at both 12–14 and 17–19 years of age

From: Do preterm-born adolescents have a poorer oral health-related quality of life?

 

EPT

VPT

Full term

n = 25

n = 73

n = 93

Sex

   

Boys

15 (60%)

33 (46%)

43 (46%)

Girls

10 (40%)

40 (54%)

50 (54%)

Mean age (range)

12.6 (11.2–14.0)

12.7 (11.3–14.2)

12.8 (11.2–14.2)

12–14 years of age

   

Mean age (range)

18.2 (16.8–19.3)

18.3 (17.0–19.3)

18.4 (16.8–19.9)

17–19 years of age

   

Mean gestational age in weeks (range)

26.6

30.8

 ≄ 37

 

(24–28)

(29–32)

No data available

Mean birth weight in grams (range)

893.6

1607.3

3521.0

 

615–1250

840–2235

2590–4400

Twins/triplets

2 (8%)

25 (34%)

4 (4%)