APPENDIX G: Correlation of smoking with CSC

		Smoking				P
		Yes (n =2)		No (n =41)
Posterior osteophytes	Yes	1	50.0%	27	65.9%	0.65
	No	1	50.0%	14	34.1%
Disc degeneration	Yes	0	0.0%	26	63.4%	0.073
	No	2	100.0%	15	36.6%
Herniation	Yes	2	100.0%	31	75.6%	0.43
	No	0	0.0%	10	24.4%
	No	0	0.0%	9	22.0%