Table 1.
Descriptive statistics of demographic and electronic health record features by case/control groups, UCLA ATLAS sample, stratified by genetic inferred ancestry group
| Hispanic Latino Americans (N = 610) | African Americans (N = 440) | |||||
|---|---|---|---|---|---|---|
| Cases | Controls | P-value | Cases | Controls | P-value | |
| N | 126 | 484 | – | 84 | 356 | – |
| Age | 78.4 (71.3, 81.7) | 75.3 (72.6, 79.6) | 0.2 | 78.0 (70.1, 82.6) | 75.7 (72.7, 79.9) | 0.7 |
| Sex (Female) | 72 (57%) | 300 (62%) | 0.30 | 46 (55%) | 218 (61%) | 0.30 |
| Span of records (in yrs) | 5.9 (2.8, 8.8) | 9.6 (7.7, 10.9) | <0.001a | 6.2 (3.1, 10.1) | 9.9 (8.1, 11.4) | <0.001a |
| Encounters per year | 16 (7, 25) | 14 (8, 20) | 0.05 | 14 (6, 28) | 13 (9, 21) | 0.60 |
| Number of encounters | 73 (26, 156) | 124 (73, 205) | <0.001a | 65 (28, 183) | 140 (84, 210) | <0.001a |
| Number of unique diagnosis | 68 (36, 113) | 71 (47, 108) | 0.40 | 61 (41, 99) | 73 (47, 103) | 0.20 |
Notes: Continuous variables were reported as median (IQR), and categorical variables were reported as n (%). P-values were calculated based on two-sided Wilcoxon rank sum test or Pearson’s Chi-squared test as appropriate.
aStatistically significant at level 0.05.