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Table 3 Results of the X-11 analysis testing the seasonality of atrial fibrillation hospitalizations by age and gender between the years 1988 and 2001

From: Is there a clinically significant seasonal component to hospital admissions for atrial fibrillation?

  Male Female Both genders
Age group Stable Moving Combined§ Stable Moving Combined Stable Moving Combined
40–49 2.61** 1.52 not present 1.15 1.42 not present 3.20 1.12 not present
50–59 3.16*** 0.87 not present 2.02* 1.28 not present 4.10*** 1.79 present
60–69 1.61 0.92 not present 0.78 0.44 not present 2.31* 0.63 not present
70–79 1.48 0.78 not present 4.08*** 1.88* present 3.95*** 1.13 present
80+ 1.25 1.07 not present 2.02* 3.05** not present 2.17* 2.33* not present
All ages 4.56*** 1.43 present 4.37*** 2.02* present 7.16*** 1.35 present
  1. stable seasonality is a one-way analysis of variance on the de-trended series with months as the factor moving seasonality test is a two-way analysis of variance with month and year as factors § combined test * p < 0.05, **p < 0.01, ***p < 0.001