In a longitudinal clinical study to compare two groups, the primary end point is often the time to a specific event (eg, disease progression, death). The hazard ratio estimate is routinely used to ...

Video-assisted thoracoscopic surgery demonstrated superior overall survival than open lobectomy in patients with early-stage lung cancer.

Patients undergoing video-assisted thoracoscopic surgery (VATS) for early-stage lung cancer had improved overall survival (OS) compared with patients who had open lobectomy, according to a ...