Table 1 Demographic characteristics (mean (standard deviation)) and follow-up characteristics for the four monitoring programmes
Programmen†Age (years) at baselineFEV1 (L) at baselineHeight (cm) at baselineMean duration of follow-up (years)
P1- Male15937 (10.0)4.2 (0.8)176 (5.9)5.2
    Female3734 (7.7)3.1 (0.6)162 (5.3)5.1
P2- Male71437 (11.1)3.9 (0.7)179 (6.6)5.4
    Female11135 (9.5)2.8 (0.6)167 (6.8)3.8
P3A-Male129138 (9.9)4.2 (0.7)179 (10.3)8.4
    Female4932 (4.2)3.6 (0.4)170 (4.9)7.8
P3B-Male121340 (10.7)4.1 (0.7)178 (11.3)3.5
    Female5335 (6.4)3.4 (0.5)170 (5.1)3.2
P4-Male351048 (7.0)2.9 (0.5)177 (6.6)4.9
    Female208749 (6.6)2.1 (0.4)164 (5.9)4.9
  • †Number of individuals who had at least one follow-up measurement within 14 months.