Table 3.
Monte-carlo mean of F-statistics in each scenario using the proportion of patients who received the same treatment as proxy of instrument
| n | Level | Weak | Mod | Strong |
|---|---|---|---|---|
| 30000 | ||||
| High | 14.14 | 101.32 | 432.00 | |
| Med | 16.95 | 105.93 | 458.32 | |
| Low | 17.65 | 108.05 | 465.88 | |
| 20000 | ||||
| High | 11.47 | 69.15 | 290.29 | |
| Med | 13.49 | 71.53 | 302.10 | |
| Low | 15.93 | 75.59 | 315.68 | |
| 10000 | ||||
| High | 8.96 | 36.64 | 147.29 | |
| Med | 11.76 | 39.26 | 152.53 | |
| Low | 12.48 | 42.80 | 161.04 |
Legend: Low, Med (Medium), High denote level of confounding whereas Weak, Mod (Moderate), Strong stand for instrument strength. The number n with values 10000, 20000 and 30000 stands for the sample size