Table 2

Distribution of macular thickness profiles in overall sample and respective ethnic groups

OverallChineseMalaysIndiansP (Chinese vs Malays)P (Chinese vs Indians)P (Malays vs Indians)
Mean (SD)Mean (SD)Mean (SD)Mean (SD)Model 1Model 2Model 1Model 2Model 1Model 2
Overall average macula (µm)276.1 (13.4)279.9 (12.5)276.5 (13.7)272.4 (13.1)0.0030.001<0.001<0.001<0.001<0.001
Central subfield macula (µm)246.7 (21.4)249.9 (21.3)245.9 (21.2)244.3 (21.3)0.0420.030<0.001<0.0010.0340.096
Average inner macula (µm)313.8 (16.7)318.3 (15.6)313.6 (16.6)309.8 (16.7)0.0010.001<0.001<0.001<0.001<0.001
Average outer macula (µm)272.5 (13.8)276.4 (13.0)273.0 (14.1)268.6 (13.4)0.001<0.001<0.001<0.001<0.001<0.001
  • Model 1: Adjusted for age, gender, ethnicity, diabetes mellitus, total cholesterol level, chronic kidney disease, axial length, corneal curvature, presence of cataract and signal strength.

  • Model 2: Adjusted for same set of covariates as model 1, but only evaluated among subjects aged between 50 and 80 years old.