| http://www.w3.org/ns/prov#value | - In fact, the 25th percentile for postoperative length of stay was 9 days in this cohort; hence, a 14-day cutoff represented a marked prolongation (>5 days) in the length of stay, not a trivial prolongation of 1 or 2 days that could be due to "soft factors" such as physician preference or lack of transportation.
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