01762nas a2200289   4500000000100000008004100001260001600042653001800058653001500076653001000091653001100101653001100112653000900123653001500132653001700147653001200164653003100176100001300207700001900220700001500239700002200254245004700276300000600323490000600329520112300335022001401458       2005                            d  c2005 Mar 2410aAcne Vulgaris10aAdolescent10aAdult10aFemale10aHumans10aMale10aOdds Ratio10aRisk Factors10aSmoking10aSurveys and Questionnaires1 aFirooz A1 aSarhangnejad R1 aDavoudi SM1 aNassiri-Kashani M00aAcne and smoking: is there a relationship?  a20 v53 a<p><b>BACKGROUND: </b>There are contradictory reports on the relationship between acne vulgaris and cigarette smoking. The objective of this study was to examine the relation between acne and cigarette smoking in a case-control study.</p><p><b>METHODS: </b>A questionnaire on smoking habits was offered to 350 patients with acne vulgaris and 350 patients suffering from skin diseases other than acne, aged 15-40 years, attending in a skin clinic in Tehran, Iran. The patients completed the questionnaires anonymously in the waiting room.</p><p><b>RESULTS: </b>Two hundred and ninety-three patients with acne (response rate 83.7 %) and 301 patients with other skin diseases (response rate 86.0 %) completed the questionnaires. Twelve acne patients (4.1 %) and 27 control patients (9.0 %) were current smokers (odds ratio = 0.43, 95% confidence limits 0.22 - 0.87, p < 0.05). But after adjustment for sex, this difference was not significant (odds ratio: 0.61, 95% CI: 0.30-1.26, p > 0.05, Mantel-Haenszel test).</p><p><b>CONCLUSION: </b>An association between acne and cigarette smoking was not found in this study.</p>  a1471-5945