Table 3. Application of the Bland–Altman limits of agreement to a plausible range of AD meta-analysis HRs.
Observed AD meta-analysis HR | Potential IPD meta-analysis HR (after dividing by the limits of agreement: 0.90 and 1.05) | Observed control group survival band | Potential IPD meta-analysis absolute survival effects at a representative control group value |
---|---|---|---|
0.70 | 0.67 to 0.78 | <10% | 5% to 8% |
10%–19% | 8% to 13% | ||
20%–49% | 9% to 14% | ||
50%–69% | 7% to 11% | ||
≥70% | 5% to 7% | ||
0.75 | 0.71 to 0.83 | <10% | 3% to 7% |
10%–19% | 6% to 10% | ||
20%–49% | 7% to 11% | ||
50%–69% | 5% to 9% | ||
≥70% | 3% to 6% | ||
0.80 | 0.76 to 0.89 | <10% | 2% to 5% |
10%–19% | 4% to 8% | ||
20%–49% | 4% to 10% | ||
50%–69% | 4% to 8% | ||
≥70% | 2% to 5% | ||
0.85 | 0.81 to 0.94 | <10% | 1% to 4% |
10%–19% | 2% to 6% | ||
20%–49% | 2% to 7% | ||
50%–69% | 2% to 6% | ||
≥70% | 1% to 4% | ||
0.90 | 0.86 to 1.00 | <10% | 0% to 2% |
10%–19% | 0% to 4% | ||
20%–49% | 0% to 5% | ||
50%–69% | 0% to 4% | ||
≥70% | 0% to 3% | ||
0.95 | 0.90 to 1.05 | <10% | −1% to 1% |
10%–19% | −2% to 3% | ||
20%–49% | −2% to 3% | ||
50%–69 | −2% to 3% | ||
≥70% | −1% to 2% |
AD, aggregate data; HR, hazard ratio; IPD, individual participant data.