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. 2009 Sep 15;94(10):3806–3815. doi: 10.1210/jc.2009-0417

Figure 3.

Figure 3

Predicted probability of frailty status at follow-up, by quartile of bioavailable testosterone and frailty status at baseline for a 73.4-yr-old man. Cut-points for quartiles of bioavailable testosterone: Q1, ≤165.4 ng/dl; Q2, 165.4 to <201.5 ng/dl; Q3, 201.5 to <241.9 ng/dl; and Q4, ≥241.9 ng/dl. Probabilities derived from a partial proportional odds model, with age and bioavailable testosterone meeting the proportionality assumption, and frailty status at baseline not meeting the proportional odds assumption. The age assumed for the model (73.4 yr) is the mean age of the population at baseline.