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Distribution of age of the total study cohort as well as the sub-cohorts with preoperative PTA4 and PTAlow (n = 923).
| Age | ||||
|---|---|---|---|---|
| Mean | SD | Max | Min | |
| Total study cohort (n = 923) | 50.6 | 17.3 | 93 | 16.9 |
| Sub-cohort PTA4 (n = 324) | 51.1 | 16.5 | 86.2 | 18.2 |
| Sub-cohort PTAlow (n = 233) | 51.0 | 15.8 | 86.2 | 18.3 |
