Table 3.

Central corneal thickness comparisons by race/ethnicity and gender

Comparison	Estimated Difference in micrometers (95% Confidence Interval)	P-Value*
Female - Male	−5.1 (−8.5, −1.7)	P = 0.003
White - Hispanic	3.4 (−2.2, 9.0)	P = 0.39
White – African American	23.2 (17.5, 29.0)	P < 0.001
White – East Asian	9.7 (0.6, 18.8)	P=0.030
Hispanic – African American	19.8 (13.7, 25.9)	P < 0.001
Hispanic – East Asian	6.3 (−3.0, 15.6)	P=0.30
African American – East Asian	−13.5 (−22.9, −4.1)	P=0.001

^*P-values for racial group comparisons include the Tukey-Kramer adjustment for multiple comparisons.