Table 2.

Results of multivariable regression models evaluating the association of race and ethnicity with standard automated perimetry mean deviation variability (standard deviation [SD] of the residuals) adjusting for covariates.

Parameter	Coefficient	95% CI		P value
By race
Black or African American race	0.783	0.371	1.196	< 0.001
Mean SAP MD spline 1, per 1 dB lower	0.068	0.028	0.109	0.001
Mean SAP MD spline 2, per 1 dB lower	− 0.045	− 0.091	0.001	0.058
Mean SAP MD spline 3, per 1 dB lower	0.951	0.419	1.482	< 0.001
Race × mean SAP MD spline 1	− 0.064	− 0.130	0.002	0.057
Race × mean SAP MD spline 2	0.119	0.039	0.199	0.004
Race × mean SAP MD spline 3	− 1.851	− 2.961	− 0.741	0.001
Baseline age, per 10 years	− 0.003	− 0.036	0.030	0.862
Follow-up duration, per 1 year	0.024	0.015	0.033	< 0.001
By ethnicity
Hispanic or Latino ethnicity	0.180	0.014	0.345	0.033
Mean SAP MD spline 1, per 1 dB lower	0.016	− 0.006	0.039	0.151
Mean SAP MD spline 2, per 1 dB lower	0.032	0.013	0.050	0.001
Ethnicity × mean SAP MD spline 1	0.054	0.008	0.100	0.022
Ethnicity × mean SAP MD spline 2	− 0.037	− 0.077	0.003	0.068
Baseline age, per 10 years	− 0.003	− 0.034	0.028	0.846
Follow-up duration, per 1 year	0.023	0.014	0.032	< 0.001

CI confidence interval, SAP standard automated perimetry, MD mean deviation, SD standard deviation.