Table 2.
Mean age and frequency of MVI, B12, or MVI + B12 use by age range
| Age at diagnosis | NoB12Supp | MVI | B12 | B12 + MVI | p-value |
|---|---|---|---|---|---|
| n = 617 (54%) | n = 466 (41%) | n = 26 (2%) | n = 38 (3%) | ||
| < 50 yrs | |||||
| Number of subjects | 99 (66)‡ | 48 (32)‡ | 2 (1) | 2 (1) | 0.02* |
| Age | 44.3 ± 4.6 | 44.73 ± 4.6 | 47.5 ± 2.1 | 48.0 ± 1.4 | 0.52† |
| 50–59 yrs | |||||
| Number of subjects | 219 (58) | 146 (39) | 6 (1) | 7 (2) | 0.07* |
| Age | 54.9 ± 2.8 | 55.12 ± 2.9 | 55.5 ± 3.2 | 56.3 ± 3.6 | 0.51† |
| 60–69 yrs | |||||
| Number of subjects | 209 (48) | 200 (46) | 9 (2) | 18 (4) | 0.01* |
| Age | 64.1 ± 2.8 | 64.11 ± 2.8 | 64.22 ± 3.4 | 63.4 ± 2.9 | 0.77† |
| ≥ 70 yrs | |||||
| Number of subjects | 90 (49) | 72 (40) | 9 (5) | 11 (6) | 0.01* |
| Age | 73.4 ± 3.1 | 73.6 ± 3.2 | 72.8 ± 1.8 | 1.4 ± 1.9 | 0.16† |
Data are presented as a number (percentage) or mean ± SD.
*
group comparison of number using Fisher’s exact test for each age subgroup,
†
group comparison of age using ANOVA for each age subgroup,
‡
p = 0.038 pairwise comparison by Hochberg test. MVI: multivitamin.