Figure 1

Kaplan–Meier curves for lifetime cruciate ligament survival in the Exceptional Aging in Rottweilers Study (EARS) cohort (n = 123). Four panels show cruciate ligament survival stratified by (a) sex, (b) body condition, (c) adult height, and (d) gonad exposure. In this survival analysis, time to event is time to first rupture, i.e., loss of any CCL survival. Overweight versus not overweight refers to body condition prior to the time of first rupture, i.e., presence or absence of precedent overweight. Tall versus short height reflects sex-specific cut points of adult height (TALL females > 61.0 cm; TALL males > 64.8 cm). Gonad exposure of ≤ 24 months versus > 24 months represents dogs that experienced gonad removal versus gonad retention during the developmental period, i.e., first 24 months of life. P-values calculated using log-rank test.