Fan Xu, M.D., Ph.D., Fang Li, M.D., Ph.D., Lan Li, M.D., Dan Lin, M.D., Huiquan Hu, M.D., Qiuling Shi, M.D., Ph.D.
To investigate the relationship between vitamin D deficiency and the risk of asymptomatic uterine fibroids (UFs).
The present analysis recruited 133 asymptomatic patients with UFs and 80 normal control subjects from October 2017 to June 2020. Age matching created 61 pairs.
Medical history, transvaginal or transabdominal genital ultrasound scan, blood sampling, and measurement of vitamin D concentrations.
Main Outcome Measure(s)
Evaluation of the impact of vitamin D level on the risk of newly diagnosed asymptomatic UFs in premenopausal Han Chinese women.
Vitamin D levels of UF-positive patients were lower than those of healthy control subjects in unmatched samples (12.1 ng/mL vs. 16.8 ng/mL) and in matched samples (11.4 vs. 17.5 ng/mL). Younger patients (≤40 years) had a lower vitamin D level than older subjects in healthy control group (15.1 ng/mL vs. 19.0 ng/mL). We did not observe any age–vitamin D interactive effect in unmatched samples. Multivariate logistic regression revealed that asymptomatic patients presented a lower level of vitamin D than did normal groups in both unmatched and matched sample. In addition, the optimal threshold vitamin D level for having asymptomatic UFs was 14.34 ng/mL.
Vitamin D deficiency may be associated with increased risk of asymptomatic UFs in premenopausal Han Chinese women.