Table 2

Observed incidence rates (per 1000 person-years) for recorded AF during the period 2004–2018, stratified by age and gender

Incidence rate95% CIP value*
All patients4.524.49 to 4.55
Gender<0.001
 Female4.124.08 to 4.16
 Male4.954.91 to 4.99
Age group<0.001
 40–540.580.56 to 0.59
 55–642.362.32 to 2.40
 65–746.846.76 to 6.93
 75–8415.515.3 to 15.7
 85+21.721.4 to 22.0
Gender and age group<0.001
 Women<0.001
  40–540.320.30 to 0.34
  55–641.521.48 to 1.57
  65–745.245.14 to 5.34
  75–8413.713.5 to 13.9
  85+20.320.0 to 20.7
 Men<0.001
  40–540.830.80 to 0.85
  55–643.203.14 to 3.27
  65–748.618.48 to 8.75
  75–8418.017.7 to 18.3
  85+24.824.2 to 25.3
  • *The p values presented in this table come from unadjusted tests of whether there is variation by age and sex (overall, top two sets of rows) and variation by age, stratified by sex (below, bottom two sets of rows). The interaction p value, however, has a slightly different interpretation and presents a measure of the strength of evidence of whether the effect of age is different for men and women (middle row).

  • AF, atrial fibrillation.