Table 4
Significant multivariate risk factors for pterygium
Risk factor
Odds ratio
95% CL
Age group (10 year)
1.23
1.06, 1.44
Male sex
2.02
1.35, 3.03
Rural residence
5.28
3.56, 7.84
Lifetime ocular sun exposure
(0.01 log MSY)
1.63
1.18, 2.25