The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study

OBJECTIVES The effect of age, sex, and other demographic factors on the relationship between smoking and dry mouth remains unknown. The aim of this study was to investigate the effects of demographic characteristics on the relationship between dry mouth, also known as xerostomia, and smoking. METHOD...

Full description

Bibliographic Details
Main Authors: Shahla Kakoei, Amir Hossein Nekouei, Sina Kakooei, Hamid Najafipour
Format: Article
Language:English
Published: Korean Society of Epidemiology 2021-02-01
Series:Epidemiology and Health
Subjects:
Online Access:http://www.e-epih.org/upload/pdf/epih-43-e2021017.pdf
_version_ 1818759782618628096
author Shahla Kakoei
Amir Hossein Nekouei
Sina Kakooei
Hamid Najafipour
author_facet Shahla Kakoei
Amir Hossein Nekouei
Sina Kakooei
Hamid Najafipour
author_sort Shahla Kakoei
collection DOAJ
description OBJECTIVES The effect of age, sex, and other demographic factors on the relationship between smoking and dry mouth remains unknown. The aim of this study was to investigate the effects of demographic characteristics on the relationship between dry mouth, also known as xerostomia, and smoking. METHODS This case-control study included 5,640 randomly-selected subjects from the second phase of the Kerman Coronary Artery Disease Risk Factors Study, which observed 10,000 participants from 2014 to 2018. A checklist was used to record the participants’ demographic characteristics and smoking frequency. Each participant completed a six-item Fox questionnaire to measure dry mouth as a dependent variable. The interaction terms of daily cigarette smoking with sex, age, educational level, and marital status were entered into the model. Non-significant terms were removed using hierarchical model selection. RESULTS Of the sample, 3,429 (60.8%) did not have dry mouth and were analyzed as controls, whereas 2,211 (39.2%) had xerostomia and were deemed to be cases. Smokers were more likely to have dry mouth in all ages and both sexes (p<0.001). As male became older, the chance of having dry mouth increased more rapidly than among female smokers (p<0.001). In addition, female smokers were more likely to have dry mouth than male smokers (p<0.001). CONCLUSIONS The likelihood of dry mouth among daily smokers depended on age and sex. Female smokers were more likely to have dry mouth, and its likelihood increased with age in daily smokers of both sexes, though more rapidly in males.
first_indexed 2024-12-18T06:48:12Z
format Article
id doaj.art-42ed2b05abde4133afa499d9df8f2af4
institution Directory Open Access Journal
issn 2092-7193
language English
last_indexed 2024-12-18T06:48:12Z
publishDate 2021-02-01
publisher Korean Society of Epidemiology
record_format Article
series Epidemiology and Health
spelling doaj.art-42ed2b05abde4133afa499d9df8f2af42022-12-21T21:17:25ZengKorean Society of EpidemiologyEpidemiology and Health2092-71932021-02-014310.4178/epih.e20210171162The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control studyShahla Kakoei0Amir Hossein Nekouei1Sina Kakooei2Hamid Najafipour3 Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran Social Determinants of Oral Health Research Center, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran Endodontology Research Center, Kerman University of Medical Sciences, Kerman, Iran Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, IranOBJECTIVES The effect of age, sex, and other demographic factors on the relationship between smoking and dry mouth remains unknown. The aim of this study was to investigate the effects of demographic characteristics on the relationship between dry mouth, also known as xerostomia, and smoking. METHODS This case-control study included 5,640 randomly-selected subjects from the second phase of the Kerman Coronary Artery Disease Risk Factors Study, which observed 10,000 participants from 2014 to 2018. A checklist was used to record the participants’ demographic characteristics and smoking frequency. Each participant completed a six-item Fox questionnaire to measure dry mouth as a dependent variable. The interaction terms of daily cigarette smoking with sex, age, educational level, and marital status were entered into the model. Non-significant terms were removed using hierarchical model selection. RESULTS Of the sample, 3,429 (60.8%) did not have dry mouth and were analyzed as controls, whereas 2,211 (39.2%) had xerostomia and were deemed to be cases. Smokers were more likely to have dry mouth in all ages and both sexes (p<0.001). As male became older, the chance of having dry mouth increased more rapidly than among female smokers (p<0.001). In addition, female smokers were more likely to have dry mouth than male smokers (p<0.001). CONCLUSIONS The likelihood of dry mouth among daily smokers depended on age and sex. Female smokers were more likely to have dry mouth, and its likelihood increased with age in daily smokers of both sexes, though more rapidly in males.http://www.e-epih.org/upload/pdf/epih-43-e2021017.pdfcigarette smokingxerostomiademographyeffect modifiers
spellingShingle Shahla Kakoei
Amir Hossein Nekouei
Sina Kakooei
Hamid Najafipour
The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
Epidemiology and Health
cigarette smoking
xerostomia
demography
effect modifiers
title The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
title_full The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
title_fullStr The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
title_full_unstemmed The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
title_short The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
title_sort effect of demographic characteristics on the relationship between smoking and dry mouth in iran a cross sectional case control study
topic cigarette smoking
xerostomia
demography
effect modifiers
url http://www.e-epih.org/upload/pdf/epih-43-e2021017.pdf
work_keys_str_mv AT shahlakakoei theeffectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT amirhosseinnekouei theeffectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT sinakakooei theeffectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT hamidnajafipour theeffectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT shahlakakoei effectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT amirhosseinnekouei effectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT sinakakooei effectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy
AT hamidnajafipour effectofdemographiccharacteristicsontherelationshipbetweensmokinganddrymouthiniranacrosssectionalcasecontrolstudy