3.4 Analysis of outcome differences in the AHL2 subgroup (n = 28)
Successful users were younger than intermittent and failed users (p = 0.007; successful users, 63 ± 11 years old; intermittent users, 76 ± 4 years old; failed users, 73 ± 8 years old). For the AHL2 subgroup, no specific frequency differed significantly with three outcomes (Figure 1D) or two outcomes (Figure 2D). For three outcomes (successful users versus intermittent users versus failed users), the discriminant function was D = -8.372 + (0.119 * age)(discriminating power = 53.6%).