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Patient characteristics.
| Study | Year | Number of subjects | Age | Male | Race(White) | Ethnicity(Non-Hispanic and non-Latino) | BMI (kg/m2) | Smoking |
|---|---|---|---|---|---|---|---|---|
| Creech17 | 2017 | 284 | 70.9 ± 4.62 | 49.2% | 91.5% | 64.4% | 29.4 ± 5.67 | 10.2% |
| Frenck16 | 2017 | 456 | 45.0 ± 13.13 | 43.2% | 73.2% | 73.7% | 29.5 ± 6.42 | 19.1% |
| Nissen20 18-24-year age stratum | 2015 | 96 | 21.3 ± 1.65 | 30.2% | 91.7% | 99.0% | 25.4 ± 5.26 | 17.7% |
| Nissen20 50-85-year age stratum | 2015 | 312 | 63.6 ± 8.15 | 51.9% | 94.9% | 99.7% | 28.8 ± 5.82 | 9.0% |
