TABLE 3.
Descriptive characteristics of study sample
| Variable | Group | African American (n = 206), n (%) | European American (n = 207), n (%) |
|---|---|---|---|
| Ever smoker | No | 116 (56) | 139 (67) |
| Yes | 90 (44) | 67 (32) | |
| Missing | – | 1 (1) | |
| Body mass index | <25 | 49 (23) | 101 (49) |
| 25–30 | 51 (25) | 54 (26) | |
| >30 | 102 (50) | 47 (23) | |
| Missing | 4 (2) | 5 (2) | |
| COMT | Met/Met | 151 (73) | 141 (68) |
| Any Val | 21 (10) | 50 (24) | |
| Missing | 34 (17) | 16 (8) | |
| CYP19 | Any 264Cys | 57 (28) | 14 (7) |
| 264 Arg/Arg | 133 (64) | 184 (89) | |
| Missing | 16 (8) | 9 (4) | |
| CYP1A2 | Any *1F | 31 (15) | 20 (10) |
| *1/*1 | 150 (73) | 170 (82) | |
| Missing | 25 (12) | 17 (8) | |
| CYP1B1*3 | Any *3 | 107 (52) | 37 (18) |
| *1/*1 | 77 (37) | 154 (74) | |
| Missing | 22 (11) | 16 (8) | |
| CYP1B1*4 | Any *4 | 163 (79) | 136 (66) |
| *1/*1 | 21 (10) | 54 (26) | |
| Missing | 22 (11) | 17 (8) | |
| CYP3A4 | Any *1B | 38 (18) | 177 (86) |
| *1/*1 | 142 (69) | 14 (6) | |
| Missing | 26 (13) | 16 (8) | |
| SULT1A1*2 | Any *2 | 98 (48) | 93 (45) |
| *1/*1 | 58 (28) | 88 (42) | |
| Missing | 50 (24) | 26 (13) | |
| SULT1A1*3 | Any *3 | 88 (42) | 183 (88) |
| *1/*1 | 68 (34) | 1 (1) | |
| Missing | 50 (24) | 23 (11) | |
| SULT1E1 5′UTR | Any A | 56 (27) | 24 (12) |
| G/G | 82 (40) | 129 (62) | |
| Missing | 68 (33) | 54 (26) | |
| SULT1E1 3′UTR | Any C | 175 (85) | 96 (47) |
| T/T | 19 (9) | 94 (45) | |
| Missing | 12 (6) | 17 (8) |