Egyptian Journal of Medical Human Genetics

Table 2 Comparison between controls and cases regarding their smoking status

From: SHOX2 gene methylation in Egyptians having lung cancer

Smoking status	Controls (n = 20)		Cases (n = 60)		χ²	^MCp
Smoking status	n.	%	n.	%	χ²	^MCp
Non-smoker	14	70.0	14	23.3	6.989^*	0.023^*
Smoker	4	20.0	38	63.3
Ex-smoker	2	10.0	8	13.3

χ²: Chi square test, MC: Monte Carlo, p: p value for comparing between the two groups
*Statistically significant at p ≤ 0.05

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