Unadjusted mean biometric gonioscopy (BG) measurements (standard deviation in parentheses) by age and sex for the three racial groups—black, white, and Chinese races
| Race | Age | BG mean (SD) for men | No of men | BG mean (SD) for women | No of women | Total |
|---|---|---|---|---|---|---|
| Chinese | 40–49 | 4.42 (0.30) | 15 | 4.57 (0.33) | 15 | 30 |
| 50–59 | 4.37 (0.31) | 15 | 3.85 (0.40) | 15 | 30 | |
| 60–69 | 4.03 (0.36) | 15 | 2.84 (0.37) | 19 | 34 | |
| 70–79 | 4.09 (0.33) | 15 | 2.98 (0.38) | 16 | 31 | |
| Overall | 4.23 (0.16) | 60 | 3.51 (0.20) | 65 | 125 | |
| Black | 40–49 | 4.11 (0.26) | 15 | 3.88 (0.19) | 15 | 30 |
| 50–59 | 3.57 (0.19) | 15 | 4.05 (0.20) | 16 | 31 | |
| 60–69 | 3.25 (0.28) | 15 | 3.47 (0.26) | 15 | 30 | |
| 70–79 | 3.65 (0.25) | 11 | 3.74 (0.21) | 20 | 31 | |
| Overall | 3.64 (0.13) | 56 | 3.79 (0.11) | 66 | 122 | |
| White | 40–49 | 3.72 (0.24) | 15 | 4.01 (0.29) | 19 | 34 |
| 50–59 | 4.56 (0.45) | 9 | 3.89 (0.29) | 16 | 25 | |
| 60–69 | 3.39 (0.43) | 7 | 3.56 (0.33) | 17 | 24 | |
| 70–79 | 4.07 (0.33) | 15 | 3.51 (0.25) | 17 | 32 | |
| Overall | 3.95 (0.18) | 46 | 3.75 (0.15) | 69 | 115 | |
| Total | 162 | 200 | 362 | |||