Table 1.
Distribution of Angle Parameters in Dark Conditions and Dark-to-Light Change by Age and Sex among the Study Groups
Age | American Caucasian |
American Chinese |
Southern Chinese |
Northern Chinese |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | AOD500 | ARA | TISA | n | AOD500 | ARA | TISA | n | AOD500 | ARA | TISA | n | AOD500 | ARA | TISA | |
Dark | ||||||||||||||||
40–50 | 30 | 0.42 ± 0.20 | 0.41 ± 0.19 | 0.29 ± 0.13 | 30 | 0.31 ± 0.13 | 0.25 ± 0.11 | 0.22 ± 0.08 | 30 | 0.28 ± 0.20 | 0.25 ± 0.14 | 0.21 ± 0.12 | 30 | 0.34 ± 0.13 | 0.29 ± 0.11 | 0.25 ± 0.08 |
50–60 | 30 | 0.39 ± 0.21 | 0.42 ± 0.20 | 0.29 ± 0.15 | 32 | 0.28 ± 0.14 | 0.24 ± 0.12 | 0.21 ± 0.09 | 31 | 0.25 ± 0.12 | 0.25 ± 0.12 | 0.19 ± 0.07 | 30 | 0.26 ± 0.12 | 0.22 ± 0.10 | 0.19 ± 0.07 |
60–70 | 31 | 0.30 ± 0.20 | 0.31 ± 0.17 | 0.23 ± 0.12 | 31 | 0.31 ± 0.18 | 0.27 ± 0.16 | 0.23 ± 0.12 | 30 | 0.23 ± 0.09 | 0.22 ± 0.08 | 0.18 ± 0.06 | 30 | 0.19 ± 0.10 | 0.17 ± 0.08 | 0.15 ± 0.07 |
≥70 | 30 | 0.30 ± 0.15 | 0.33 ± 0.17 | 0.24 ± 0.11 | 31 | 0.24 ± 0.23 | 0.22 ± 0.17 | 0.19 ± 0.15 | 30 | 0.21 ± 0.14 | 0.25 ± 0.13 | 0.18 ± 0.09 | 30 | 0.23 ± 0.10 | 0.21 ± 0.08 | 0.18 ± 0.06 |
All | 121 | 0.35 ± 0.19 | 0.36 ± 0.19 | 0.26 ± 0.13 | 124 | 0.29 ± 0.18 | 0.25 ± 0.14 | 0.21 ± 0.11 | 121 | 0.25 ± 0.14 | 0.25 ± 0.13 | 0.19 ± 0.09 | 120 | 0.25 ± 0.13 | 0.21 ± 0.11 | 0.18 ± 0.08 |
β (age) | −0.003 | −0.002 | −0.002 | −0.002 | −0.001 | −0.001 | −0.003 | −0.002 | −0.001 | −0.004 | −0.004 | −0.003 | ||||
β (sex) | 0.01 | −0.005 | −0.003 | −0.04 | −0.03 | −0.02 | −0.07 | −0.07 | −0.05 | −0.03 | −0.01 | −0.02 | ||||
Dark-to-Light Change* | ||||||||||||||||
40–50 | 30 | 0.1 ± 0.07 | 0.08 ± 0.08 | 0.06 ± 0.05 | 30 | 0.09 ± 0.07 | 0.06 ± 0.05 | 0.06 ± 0.04 | 30 | 0.09 ± 0.10 | 0.07 ± 0.06 | 0.05 ± 0.05 | 30 | 0.08 ± 0.10 | 0.07 ± 0.08 | 0.07 ± 0.06 |
50–60 | 30 | 0.08 ± 0.08 | 0.08 ± 0.07 | 0.05 ± 0.05 | 32 | 0.10 ± 0.10 | 0.07 ± 0.08 | 0.06 ± 0.06 | 31 | 0.07 ± 0.07 | 0.07 ± 0.08 | 0.06 ± 0.05 | 30 | 0.07 ± 0.07 | 0.06 ± 0.05 | 0.06 ± 0.04 |
60–70 | 31 | 0.09 ± 0.10 | 0.08 ± 0.08 | 0.06 ± 0.05 | 31 | 0.13 ± 0.07 | 0.09 ± 0.05 | 0.07 ± 0.04 | 30 | 0.09 ± 0.07 | 0.08 ± 0.07 | 0.06 ± 0.04 | 30 | 0.08 ± 0.08 | 0.06 ± 0.06 | 0.05 ± 0.05 |
≥70 | 30 | 0.06 ± 0.08 | 0.06 ± 0.08 | 0.04 ± 0.07 | 31 | 0.08 ± 0.11 | 0.06 ± 0.07 | 0.05 ± 0.07 | 30 | 0.07 ± 0.05 | 0.04 ± 0.07 | 0.04 ± 0.03 | 30 | 0.07 ± 0.06 | 0.07 ± 0.06 | 0.05 ± 0.03 |
All | 121 | 0.08 ± 0.08 | 0.07 ± 0.08 | 0.05 ± 0.05 | 124 | 0.10 ± 0.09 | 0.07 ± 0.07 | 0.06 ± 0.05 | 121 | 0.08 ± 0.07 | 0.07 ± 0.07 | 0.05 ± 0.04 | 120 | 0.07 ± 0.07 | 0.07 ± 0.06 | 0.05 ± 0.06 |
P (age) | 0.117 | 0.586 | 0.149 | 0.944 | 0.936 | 0.819 | 0.398 | 0.058 | 0.196 | 0.673 | 0.655 | 0.804 | ||||
P (sex) | 0.665 | 0.857 | 0.530 | 0.839 | 0.813 | 0.975 | 0.372 | 0.753 | 0.697 | 0.114 | 0.098 | 0.177 |
Data are expressed as the mean ± SD. β (age/sex), regression coefficient of age/sex in regression models with angle parameter as the dependent variable and age and sex as the independent variables. P(age/sex), P values of age/sex in the regression models (bold type denotes that the association is statistically significant; P < 0.05). AOD500, angle opening distance at 500 μm from the SS.
Values in light minus values in dark.