Table 2.

ACF prevalence and count at year 0 and year 1 among returning subjects

Year 0Year 1P
N = 434
Subjects with ACF, n (%)298 (69)266 (61)0.02
Mean (SD) ACF count2.25 (2.6)1.93 (2.4)0.02
Mean (SD) ACF count (among those with ≥1 ACF)3.28 (2.6)3.15 (2.3)0.5
ACF count distribution, n (%)0.005
    0136 (31)168 (39)
    167 (15)85 (20)
    2-3127 (29)89 (21)
    4-683 (19)65 (15)
    7+21 (5)27 (6)