An Introduction To Instrumental Variables For epidemiologists

S. Greenland

The publisher apologises for the fact that the following misprints have been noted in the Appendix of the aforementioned article: In line 10 of the first column, 1–k should be k. In lines 3–5 of equation A1, p2kV1kVpk should be p2kV1k, m1kVpk should be m21kVpk, m0kVpk should be m20kVpk and p2kV0k should be q2kV0k. In equation A2, var(0) should be var(c). In equation A5, all three occurrences of y should be / (indicating division). These corrections do not affect the results in the main text.