Table 3

Poisson models of asthma-related emergency department attendances in Wales in 2020 and 5-year average

IRR (95% CI)P value
Pre-lockdown trend in 2020 compared with 5-year average0.71 (0.53 to 0.94)0.016
Week-on-week change in weeks 1–12
 Five-year average0.99 (0.96 to 1.01)0.255
 20201.00 (0.97 to 1.03)0.897
 2020 relative to 5-year average1.02 (0.98 to 1.06)0.417
Overall change in trend at week 13
 Five-year average1.01 (0.76 to 1.34)0.919
 20200.79 (0.53 to 1.15)0.221
 2020 relative to 5-year average0.78 (0.48 to 1.24)0.296
Week-on-week change in weeks 13–18
 Five-year average0.96 (0.89 to 1.04)0.351
 20200.82 (0.72 to 0.93)0.002
 2020 relative to 5-year average0.85 (0.73 to 0.99)0.033
  • IRR, incidence rate ratio.