Table 1.
Basic Demographic Characteristics of Subjects Relative to the rs35705950 Single Nucleotide Polymorphism
| Subjecta Characteristic by MUC5B Genotype | GG (n = 514) | GT/TT (n = 977) |
|---|---|---|
| Sex (female), No. (%) | 176 (34) | 313 (32) |
| Age at CT scan, y, mean ± SDb | 63.3 ± 10.3 | 67.0 ± 8.0 |
| Smoking History (Ever), No. (%) | 302 (58.8) | 595 (60.9) |
| Ethnicity, No. (%) | ||
| Hispanic | 7 (1) | 10 (1) |
| Non-Hispanic | 386 (75) | 709 (73) |
| Unknown | 121 (24) | 258 (26) |
G = guanine; T = thymine.
a
Self-identified as white with radiologic evidence of fibrosis and available genotypes.
b
Student t test P < .001.