In this study, the effect of cigarette smoking-one of the major risk factors for cardiovascular diseases-on the development of Frank's sign (DELC) was investigated. Rather than smoking status alone, cumulative smoking exposure was considered to cause vascular damage and thereby influence the formation of DELC. Consequently, these findings may enable family physicians and other clinicians to approach patients rapidly and non-invasively within the framework of preventive medicine.
Study Type
OBSERVATIONAL
Enrollment
404
Digital photographs obtained from both ears in a well-lit environment were evaluated by the study researchers. The presence of Frank's sign and its staging according to the Modified Patel-Lopez classification were confirmed by a positive assessment from at least two researchers
The participants' sociodemographic data, histories of chronic diseases, medication use, family histories, and smoking habits were recorded by the researchers via face-to-face interviews (average duration: 5 min)
Samsun University Training and Research Hospital (Samsun City Hospital)
Samsun, Turkey (Türkiye)
Analysis of the relationship between DELC (diagonal earlobe crease) and smoking consumption
The presence of DELC as unilateral, bilateral, or absent was evaluated with respect to smoking status categorized as current, non-smoker, or former. Categorical variables were presented as counts and percentages. Comparisons between groups were performed using the chi-square test. Differences with p-values \< 0.05 were considered statistically significant.
Time frame: maximum duration: 10 minutes
Association between smoking and DELC stage in patients with unilateral and bilateral DELC
The presence of unilateral and bilateral DELC in the right and/or left ear was assessed across smoking status groups defined as current, non-smoker, and former. Categorical variables were presented as counts and percentages. Comparisons between groups were performed using the chi-square test. Differences with p-values \< 0.05 were considered statistically significant.
Time frame: maximum duration: 10 minutes
Relationship between the participants' chronic diseases, medication use, family history, and the presence of DELC (diagonal earlobe crease)
The presence of chronic diseases (hypertension, diabetes, hyperlipidemia, and cardiovascular diseases), obesity, history of angiography, medication use, and family history of cardiovascular diseases and premature death was evaluated in individuals with unilateral and bilateral DELC as well as in those without DELC (absent). Categorical variables were presented as counts and percentages. Comparisons between groups were performed using the chi-square test. Differences with p-values \< 0.05 were considered statistically significant.
Time frame: maximum duration: 10 minutes
Analysis of the relationship between DELC and the presence of cardiac/noncardiac diseases and medication use
Diseases and medications were categorized as cardiac and non-cardiac. In individuals with unilateral and bilateral DELC, as well as in those without DELC (absent), the presence of cardiac and non-cardiac diseases was first evaluated, followed by the presence of cardiac and non-cardiac medication use. Categorical variables were presented as counts and percentages. Comparisons between groups were performed using the chi-square test. Differences with p-values \< 0.05 were considered statistically significant.
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Time frame: maximum duration: 10 minutes
Demographic characteristics of the participants
Demographic characteristics like sex, marital status and smoking status of the participants were evaluated
Time frame: maximum duration: 10 minutes