Figure 2.
Age ranges of the two groups. The mean age for the entire asymptomatic group was 58.16 (95th CI of mean = 55.18–61.16, range 29–79, sd 11.4, 25th percentile = 50, 75th percentile = 76). The mean age for the entire symptomatic group was 54 (95th CI of mean = 50.2–57.7, range 25–79, sd 14.4, 25th percentile = 45, 75th percentile = 67). There was no statistical difference between the two groups (p = 0.079, unpaired t-test).