Statistical analysis with a linear model and partition method. (A) Body weights of BC Ay males at 25 weeks of age versus PGLC levels. BC Ay males were categorized into two groups based on a partition method. The first group included nine abnormal mice and the second group included 91 normal mice. PGLC levels were ≥715 mg/dl in abnormal mice and ≤715 mg/dl in normal mice. (B) Growth curves of abnormal and normal BC Ay males based on model 3. Lines indicate predicted values and markers indicate observed data.