Journal of Ophthalmology / 2012 / Article / Tab 5

Research Article

Passive Smoking as a Risk Factor of Dry Eye in Children

Table 5

Multiple regression analysis of different factors.

BETA 𝑑 𝑃 -level

Ageβˆ’0.020βˆ’0.2850.777
BMI0.0590.8110.422
Vitamine deficiencyβˆ’0.022βˆ’0.3140.755
Duration of smokingβˆ’0.025βˆ’0.2190.827
Number of cigarettes per day0.3373.2510.002
Cotinineβˆ’0.119βˆ’0.4170.679
Cotinine/creatinine ratio0.7862.9160.005

𝑅 = 0 . 9 0 9 , 𝑅 2 = 0 . 8 2 7 , Adjusted 𝑅 2 = 0 . 7 9 6 , 𝐹 = 2 6 . 6 3 8 , 𝑃 < 0 . 0 0 0 0 0 , sd. error of estimate: 0.469.
BMI: body mass index.