Association between attendance at a behavioral change communication module and dysmenorrhea prevalence among female university students: A propensity score matched comparative study
Fig 3
Kernel density plots of propensity scores before and after matching.
X-axis: Propensity scores (range 0–1.0), and Y-axis: Kernel density (probability density of propensity scores). (A) Before matching: shows limited overlap between BCC-exposed and non-exposed (control) groups, (B) After matching: exhibits improved overlap in propensity scores, indicating better balance between groups.