Effect of Active and Passive Smoking on Retinal Nerve Fibre Layer and Ganglion Cell Complex

Table 8

Multiple regression analyses assessing different parameters affecting inferior RNFL thickness in the active smokers.

	β	B	t	value
Intercept		145.40	2.03	0.05
Age (years)	0.08	0.25	1.41	0.16
VA (logMAR)	0.11	13.76	1.82	0.07
SE (diopters)	0.09	2.40	1.34	0.19
AL (mm)	−0.02	−0.65	−0.27	0.79
IOP (mmHg)	−0.05	−0.48	−0.80	0.42
CCT (mm)	0.06	0.06	0.97	0.34
N95 latency (ms)	0.20	1.04	1.69	0.09
P50-N95 amplitude (μV)	0.30	8.12	2.48	0.02
The number of cigarettes/day	−0.84	−0.97	−13.68	<0.0001
Duration of smoking (years)	0.07	0.15	0.99	0.33
Urinary cotinine (ng/ml)	−0.53	−0.04	−7.57	<0.0001