Fig. 3
From: Association between niacin intake and osteoarthritis in the US population based on NHANES 1999–2018
Relationship between Niacin and OA in each subgroup. Each subgroup was adjusted for all factors except the grouping factor itself. OA: osteoarthritis, PIR: Poverty-to-Income Ratio, BMI: Body Mass Index, OR: Odds Ratio, CI: Confidence Interval.
