Table 4.
Sampling frequencies and entropy estimates by sampling method and by population using EHR+USC data. Observed sample (Nsample) and strata frequencies (nstrata) are provided along with maximum entropy (Hmax), entropy under random sampling (RS, HRS), maximum entropy sampling (MES, HMES), and the percentage of maximum entropy accounted for by the MES sample above and beyond that of random sampling
| Nsample | nstrata | Hmax | HRS | HMES | (HMES- HRS) / (Hmax- HRS) | |
|---|---|---|---|---|---|---|
| Population | ||||||
| Adult | 58 500 | 262 | 8.03 | 4.39 | 7.35 | 0.81 |
| Pediatric | 31 500 | 251 | 7.97 | 5.16 | 7.18 | 0.72 |