Sex and body mass index impact on digit circumference for Leeds Dactylitis Index calculation.
Clin Exp Rheumatol
; 42(1): 174-177, 2024 Jan.
Article
en En
| MEDLINE
| ID: mdl-38179711
ABSTRACT
OBJECTIVES:
To estimate digit circumference and the impact of sex and body mass index (BMI) for the calculation of the Leeds Dactylitis Index (LDI) in psoriatic arthritis (PsA) patients with bilateral dactylitis.METHODS:
Digit circumference of the hands and the foot were measured with a dactylometer and were studied according to sex and BMI (divided in 4 weight categories) in healthy Portuguese subjects, using Student's t-test and One-way ANOVA, respectively. The effect size of sex and BMI were calculated using Cohen's d test and Eta squared, respectively. Multiple linear regression was used to calculate the effect of sex and BMI, as well as their interaction, to create a formula to predict digit circumference.RESULTS:
Fifty-nine participants (33 women, 26 men) with a mean BMI of 24.8 were included. Men's mean digit circumferences were statistically higher than those of women (p<0.001), with a large sex effect size in most of the digits. Differences in the mean circumference between the four BMI categories were statistically significant (p<0.05) for all digits, with a large BMI effect size. Sex and BMI were independent variables to predict mean digit circumference (p<0.001). A new tool (based on regression analysis) allowing to estimate the circumference of digits for males and females of different BMIs is presented.CONCLUSIONS:
Our data allows the calculation of digit circumference for males and females of different BMIs in the Portuguese population; and shows that BMI influences digital circumference supporting BMI inclusion in LDI references tables.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Artritis Psoriásica
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Female
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Humans
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Male
Idioma:
En
Año:
2024
Tipo del documento:
Article