Abstract
Background
Low vitamin D is more common in Middle Eastern-born patients (Middle Easterners) than in Swedish-born patients of northern European descent (Swedes), and the condition might affect sexual health. The present study (i) investigated primary care (PC) patients (ii) compared self-reported sexual health in Swedes and Middle Easterners; (iii) analysed differences within and between the groups and (iv) analysed differences in vitamin D levels between the groups.
Methods
522 PC patients responded to a health questionnaire that included items on sexual health. All provided blood samples: 225 Middle Easterners from Iran, Iraq, and Turkey and 297 Swedes. Logistic regression was used to calculate the odds ratio (OR).
Results
Middle Easterners reported less sexual dysfunction than Swedes; 75.8% of Middle Easterners and 18.9% of Swedes presented a 25(OH)D of < 50 nmol/L. The crude OR for reporting sexual dysfunction was 70% higher in Swedes compared to Middle Easterners (OR 1.50, 95% CI 0.92–3.23). This OR remained significant after adjustment for age, gender, waist circumference, and reported sexual desire. But the significance disappeared after additional adjustment for vitamin D. In both groups, more females than males reported insufficient sexual desire. More female Middle Easterners reported sex life dissatisfaction. More female Swedes reported sexual dysfunction. Covariate inclusions could not explain the association between gender and insufficient sexual desire. Vitamin D could explain association between gender and sex life dissatisfaction in Middle Easterners, and age could explain association between gender and sexual dysfunction in Swedes. Age, waist circumference, and vitamin D levels were significant covariates in the logistic regression models.
Conclusions
Results from the present study suggest that vitamin D variation partly explains differences in sexual dysfunction between the groups and between genders within the groups. Vitamin D therapy should be investigated to determine if these results are clinically useful. That said, perceptions about sex life and mental health (rather the physiological pathology) might explain the results. And further investigation into female Middle Easterners and female Swedes is warranted.