Table 1

Participant demographics at the time of follow-up visit

 Term controlsPretermPreterm
No BPDBPD
Participants, n581636499
Males, n (%)26 (45)100 (61)42 (65)58 (59)
Age (year)10.7 (0.9)10.9 (0.6)10.9 (0.6)10.8 (0.6)
Height (cm)146.6 (9.7)142.0 (8.0)143.3 (9.0)140.6 (8.0)*
Weight (kg)37.4 (8.3)35.6 (10.6)38.9 (13.6)33.5 (7.4)*†
Symptoms in the 3 months prior to the test visit expressed as n (% of those completing questionnaire)
Asthma medication usage47 (32.0)21 (38.9)26 (28)
Respiratory symptoms at rest26 (17.0)16 (26.2)10 (11.9)†
Respiratory symptoms on exertion78 (51.0)28 (47.5)50 (53.2)
Any respiratory symptoms past 3 months80 (52.6)29 (49.2)51 (54.8)
  • Participant demographics at the time of testing are presented as mean (SD) unless otherwise indicated as number (% of population).

  • *Represents significant difference from the term controls (p<0.05).

  • †Represents significant difference between the preterm groups with and without BPD (p<0.05).

  • BPD, bronchopulmonary dysplasia.