Fig 1.
Flowchart of the inclusion process.
Table 1.
Characteristics of participants in the study population, overall and by heavy menstrual bleeding (HMB) status.
Fig 2.
Description of the proportions of affirmative answers in the SAMANTA questionnaire and odds ratio for iron deficiency for each question, univariate analysis.
ªQuestions that were assigned three points each, all other questions were assigned one point each if affirmative answer. n = 394. Abbreviated questions for the figure, full questions are available in the method section.
Fig 3.
Cumulative distribution functions of ferritin levels and probability of iron deficiency, stratified by heavy menstrual bleeding (HMB) defined as SAMANTA score ≥3.
Fig 4.
Median ferritin in women with and without heavy menstrual bleeding (HMB), stratified by diet (omnivore vs meat restricted).
Fig 5.
Forest plot showing crude odds ratios (OR) with 95% confidence interval (CI) for iron deficiency (ID) (ferritin <15 µg/L) from logistic regression analysis.
OR, crude and adjusted for BMI and years of menstruation are presented next to the plot.