Indian Journal of Dermatology
CORRESPONDENCE
Year
: 2014  |  Volume : 59  |  Issue : 5  |  Page : 516-

Severity of psoriasis among adult males is associated with smoking, not with alcohol use


James KH Ho, John HG Antrum 
 Department of General Medicine, Royal Infirmary of Edinburgh, Little France Crescent, Edinburgh, EH16 4SB, United Kingdom

Correspondence Address:
James KH Ho
Department of General Medicine, Royal Infirmary of Edinburgh, Little France Crescent, Edinburgh, EH16 4SB
United Kingdom




How to cite this article:
Ho JK, Antrum JH. Severity of psoriasis among adult males is associated with smoking, not with alcohol use.Indian J Dermatol 2014;59:516-516


How to cite this URL:
Ho JK, Antrum JH. Severity of psoriasis among adult males is associated with smoking, not with alcohol use. Indian J Dermatol [serial online] 2014 [cited 2022 Jan 18 ];59:516-516
Available from: https://www.e-ijd.org/text.asp?2014/59/5/516/139912


Full Text

Sir,

I read with great interest this engaging and insightful study, the first of its kind from India, investigating the relationship between psoriatic severity in males, and its relationship with smoking and alcohol use. [1] I wish to gain further clarity and comment on several issues.

There is little mention of the distribution of psoriasis area and severity index (PASI) scores in the studied cohort. By arbitrarily categorizing the top quartile (n = 84) of the subject group who possessed the highest PASI scores as having the "more-severe" psoriasis may only be useful in a frequency distribution of normally distributed PASI values. If PASI values were skewed to the left, subjects with high PASI scores (up to and including a score of 13.88) would still inadvertently be considered as suffering from low-severity psoriasis. This may potentially affect all data analysis when comparing the "more-severe" with the "less-severe" group.The study does not take into account the subgroup of subjects who meet the criteria for both smoking and drinking-it may be interesting to evaluate the possible interaction between these two variables in lieu of them both being possible confounding factors.The Fagerstrom score assesses Nicotine dependence and its impact on daily living. However, Nicotine dependence may or may not directly correlate with actual smoking intensity. Subjects who were ex-smokers but had given up smoking more than a year ago were deemed to be non-smokers, this despite the possibility of these subjects possessing an extensive number of pack years from smoking in the past nonetheless. It may be interesting to evaluate the relationship between the number of pack years of a patient and psoriatic severity-in lieu of the benefits of smoking cessation, and whether effects on psoriatic severity is accumulative over the years of smoking.

Thank you for your consideration.

References

1Asokan N, Prathap P, Rejani P P. Severity of psoriasis among adult males is associated with smoking, not with alcohol use. Indian J Dermatol 2014;59:237-40.