Table 1.
Effect of sex on the hair color phenotypes in the 23andMe (N=157,653 independent participants) and UK Biobank (N=133,238 independent participants) cohorts
| 23andMe | Odds | Standard | 95% Confidence Interval | |
|---|---|---|---|---|
| Ratio | Error | low | upper | |
| Blond (all) | 1.202 | 0.024 | 1.174 | 1.230 |
| Red | 1.721 | 0.014 | 1.675 | 1.768 |
| Light Brown | 1.116 | 0.013 | 1.088 | 1.145 |
| Dark Brown | 0.663 | 0.011 | 0.650 | 0.677 |
| Black | 0.348 | 0.030 | 0.329 | 0.369 |
| UKBB | Odds | Standard | 95% Confidence Interval | |
|---|---|---|---|---|
| Ratio | Error | Low | upper | |
| Blond | 1.285 | 0.018 | 1.241 | 1.330 |
| Red | 1.395 | 0.026 | 1.325 | 1.469 |
| Light Brown | 1.101 | 0.011 | 1.077 | 1.125 |
| Dark Brown | 0.993 | 0.011 | 0.971 | 1.015 |
| Black | 0.195 | 0.033 | 0.182 | 0.208 |