Table 1.
Demographic characteristics of study cohorts
| Characteristics | Development cohort | Validation cohort | ||||
|---|---|---|---|---|---|---|
| KD (n=533) | FC (n=318) | P | KD (n=268) | FC (n=161) | P | |
| Age, months, median (IQRa) |
29.8 (15.8, 52.0) |
30.7 (15.4, 61.8) |
0.22b | 30.4 (16.8, 52.6) |
45.0 (18.9, 79.1) |
<0.001b |
| Males, n (%) | 337 (63.2) | 191 (60.1) | 0.38c | 157 (58.6) | 98 (61) | 0.69c |
| Race/ethnicity, n (%) | <0.001c | 0.03c | ||||
| African American | 22 (4.1) | 8 (2.5) | 11 (4.1) | 3 (2) | ||
| Native American | 2 (0.4) | 0 (0) | 1 (0.4) | 0 (0) | ||
| Asian | 91 (17.1) | 26 (8.2) | 45 (16.8) | 11 (7) | ||
| Caucasian | 120 (22.5) | 83 (26.1) | 72 (26.9) | 45 (28) | ||
| Hispanic | 175 (32.8) | 124 (39.0) | 84 (31.3) | 59 (37) | ||
| Mixed | 109 (20.5) | 60 (18.9) | 45 (16.8) | 32 (20) | ||
| Other/unknown | 14 (2.6) | 17 (5.3) | 10 (3.7) | 11 (7) | ||
a
Interquartile range
b
Rank sum test
c
Fisher’s exact test