Table 4 Observed table of the crossover randomized experiment.
From: Heterogeneous ozone effects on the DNA methylome of bronchial cells observed in a crossover study
Participant i | Visit j | wi,j | Epigenomic potential outcomes | Observed participant difference di,k | |
|---|---|---|---|---|---|
Yi,j,k(wi,j = 0) | Yi,j,k(wi,j = 1) | ||||
1 | 1 | w1,1 = 0 | Y1,1,k(w1,1 = 0) | ? | d1,k = Y1,2,k(w1,2 = 1) − Y1,1,k(w1,1 = 0) |
1 | 2 | w1,2 = 1 | ? | Y1,2,k(w1,2 = 1) | |
… | … | … | … | … | … |
17 | 1 | w17,1 = 1 | ? | Y17,1,k(w17,1 = 1) | d17,k = Y17,1,k(w17,1 = 1) − Y17,2,k(w17,2 = 0) |
17 | 2 | w17,2 = 0 | Y17,2,k(w17,2 = 0) | ? | |
