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. Author manuscript; available in PMC: 2024 Feb 20.
Published in final edited form as: Stat Med. 2022 Dec 24;42(4):559–578. doi: 10.1002/sim.9632

TABLE 4.

Sensitivity of ICC specification in our application to the IP-SDM study. ICCs include the within-period endpoint-specific ICCs (ρ01=0.006,ρ02=0.029), the within-period between-endpoint ICC (ρ012=0), and the intra-subject ICC (ρ212=0.58). Between-period ICCs are defined by CAC. Assuming a total of I = 16 HSSCs (clusters) with N = 12 clients per HSSC per period produced a predicted power of 86.3%.

ρ212 ρ01 ρ02 ρ012 CAC power (%)
0.58 0.006 0.029 0 0.0 86.9
0.58 0.006 0.029 0 0.2 86.2
0.58 0.006 0.029 0 0.5 86.0
0.58 0.006 0.029 0 0.8 86.5
0.58 0.006 0.029 −0.004 0.2 86.1
0.58 0.006 0.029 −0.002 0.2 86.1
0.58 0.006 0.029 0.002 0.2 86.2
0.58 0.006 0.029 0.004 0.2 86.3
0.58 0.006 0.012 0 0.2 88.6
0.58 0.006 0.017 0 0.2 87.7
0.58 0.006 0.023 0 0.2 87.0
0.58 0.006 0.035 0 0.2 85.3
0.58 0.006 0.041 0 0.2 84.4
0.58 0.006 0.046 0 0.2 83.7
0.58 0.002 0.029 0 0.2 87.2
0.58 0.004 0.029 0 0.2 86.6
0.58 0.005 0.029 0 0.2 86.3
0.58 0.007 0.029 0 0.2 85.9
0.58 0.008 0.029 0 0.2 85.7
0.58 0.010 0.029 0 0.2 85.5
0.23 0.006 0.029 0 0.2 85.1
0.35 0.006 0.029 0 0.2 85.3
0.46 0.006 0.029 0 0.2 85.7
0.70 0.006 0.029 0 0.2 86.7
0.81 0.006 0.029 0 0.2 87.3
0.93 0.006 0.029 0 0.2 88.4