Permanently | 178 |
(79.5%) |
Specific number of years | 10 |
(4.5%) |
Something else b | 36 |
(16.0%) |
- a Missing data deleted listwise.
- b Specific examples: “indefinitely;” “mixed model among contributing investigators;” “generally permanently, but the answer is specific to each protocol;” “indefinitely or until the biobank closes;” “until samples are depleted”.