Table 2

Age and multivariate adjusted odds ratios (95% confidence intervals) for associations between sex, age, occupation, smoking history, and pterygium, and presence of one or more of the six dry eye symptoms present often or all the time

One or more of the six dry eye symptoms present often or all the time
CrudeMultivariate adjusted*
CharacteristicNo (%)OR (95% CI)p ValueOR (95% CI)p Value
*From a multiple logistic regression model that simultaneously includes all factors present.
Age1.02 (1.00 to 1.03)<0.0011.01 (0.99 to 1.01)0.07
Sex
    Men165 (32.7)1.01.0
    Women126 (22.8)0.6 (0.5 to 0.8)<0.0010.8 (0.6 to 1.2)0.38
Cigarette smoking
    Non126 (22.1)1.01.0
    Ex18 (32.1)1.7 (0.9 to 3.1)0.091.2 (0.6 to 2.4)0.52
    Current147 (34.1)1.8 (1.4 to 2.4)<0.0011.5 (1.0 to 2.2)0.05
Pterygium
    None185 (23.4)1.01.0
    Either eye106 (39.5)2.1 (1.6 to 2.9)<0.0011.9 (1.4 to 2.6)<0.001
Occupation
    Agriculture81 (30.7)1.0
    Factory29 (30.5)1.0 (0.6 to 1.7)0.98
    Homemaker76 (21.0)0.6 (0.4 to 0.9)0.007
    Other104 (31.0)1.0 (0.7 to 1.5)0.95