Table 3. Associations of central corneal thickness with systemic and ocular factors.

Systemic	Univariate model			Multivariate model
	β	95% CI	P-value	β	95% CI	P-value
Ethnicity
Mixed ethnicity vs Africans	17.519	10.01 to 25.02	<0.001	15.02	7.49 to 22.54	<0.001
Caucasians vs Africans	34.38	26.33 to 42.42	<0.001	32.22	23.46 to 40.98	<0.001
Age	0.404	0.196 to 0.612	<0.001	0.18	−0.06 to 0.43	0.15
Gender	3.465	−3.75 to 10.68	0.346	0.95	−6.46 to 13.07	0.95
Diabetes	10.09	0.31 to 19.88	0.043	3.30	−6.47 to 13.07	0.51
Hypertension	13.31	5.546 to 21.07	0.001	-0.01	−9.42 to 9.39	0.99
Ocular
IOP	3.78	2.42 to 5.13	<0.001	4.39	3.24 to 5.53	<0.001
Myopia	4.63	−9.61 to 18.89	0.52	1.80	−12.08 to 15.68	0.80
Pseudophakia	30.32	13.83 to 46.82	<0.001	22.88	8.63 to 37.14	0.002
Constant				439.63	419.02 to 460.24	<0.001