Table 1.
Formula Used to Calculate Continuity Measures
| Measure | Definition |
|---|---|
| Density (UPC) | max where N = total visits |
| ni = number visits to ith provider | |
| Dispersion (COC) |  where N = total visits |
| ni = total visits to ith provider | |
| p = total number of providers | |
| Sequence (SECON) |  where N = total visits |
 | |
| Entropy/Disorganization (VE) |  |
where  | |
| ni = the number of visits to the ith provider | |
| k = the total number of possible providers | |
| N = the total number of visits |
COC, dispersion continuity of care; SECON, sequence continuity; UPC, usual provider continuity; VE, visit entropy.