To check this, they enrolled sufferers with invasive breast most cancers and took vitamin D measurements at three factors: earlier than remedy, throughout remedy, and after remedy, with a median follow-up of 38 months. To investigate the information, they used group-based trajectory modeling, a statistical methodology that identifies distinct subgroups of sufferers who share related patterns of change over time, permitting them to maneuver past static measurements and characterize how every affected person’s vitamin D standing developed all through remedy.
