Table 6—

Healthcare utilisation, morbidity and lung function before and during the study

Before studyDuring study
1 yr2 yrs3 yrs
Time lost from work/school days38.12±61.83 (0–360)15.13±33.79 (0–180)5.85±17.92 (0–120)4.25±9.20 (0–30)
Primary care visits n6.78±5.96 (0–42)2.44±2.59 (0–12)1.49±1.81 (0–8)1.29±1.79 (0–10)
Emergency visits n
 Primary care1.67±1.78 (0–8)0.43±1.04 (0–6)0.24±0.73 (0–4)0.25±0.93 (0–6)
 Acute care hospital0.79±0.12 (0–6)0.21±0.60 (0–3)0.21±0.63 (0–3)0.13±0.38 (0–2)
Hospitalisations n0.10±0.30 (0–1)0.016±0.13 (0–1)0.016±0.13 (0–1)0.016±0.13 (0–1)
Nocturnal awakenings n120.43±122.5 (0–360)36.61±65.56 (0–300)20.48±53.52 (0–300)16.43±47.99 (0–300)
FEV1 % pred72.71±19.50 (25–108)78.55±17.62 (36–112)81.29±18.89 (34–118)83.23±18.76 (31–121)
 L2.14±0.68 (0.85–3.89)2.30±0.72 (0.98–3.97)2.39±0.75 (0.98–4.13)2.42±0.72 (0.85–4.13)
  • Data are presented as mean±sd (range)

  • FEV1: forced expiratory volume in one second

  • % pred: percentage of the predicted value