From: PopMod: a longitudinal population model with two interacting disease states
| Symbol | Description |
|---|---|
| πX | Probability of finding a member of T that is a member of X with random selection. |
| πC | Probability of finding a member of T that is a member of C with random selection. |
| πXC | Probability of finding a member of T that is a member of XC with random selection. |