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

Table 7

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

	β	B	t	value
Intercept	—	198.93	3.41	0.001
Age (years)	0.11	0.25	1.73	0.09
VA (logMAR)	0.11	10.74	1.74	0.09
SE (diopters)	0.07	1.63	1.12	0.27
AL (mm)	−0.04	−1.23	−0.62	0.54
IOP (mmHg)	−0.04	−0.29	−0.59	0.56
CCT (mm)	−0.03	−0.03	−0.52	0.61
N95 latency (ms)	−0.28	1.15	2.42	0.02
P50-N95 amplitude (μV)	0.31	6.70	2.62	0.01
The number of cigarettes/day	−0.85	−0.79	−13.67	<0.0001
Duration of smoking (years)	0.09	0.17	1.34	0.18
Urinary cotinine (ng/ml)	−0.46	−0.03	−6.49	<0.0001