Missing covariate data in clinical research: when and when not to use the missing-indicator method for analysis

CANADIAN MEDICAL ASSOCIATION JOURNAL

CMA-CANADIAN MEDICAL ASSOC

1. Cancer Research UK [C5529]
2. Economic and Social Research Council
3. Netherlands Organisation for Scientific Research [917.46.360, 918.10.615]
4. Medical Research Council (MRC)
5. Novartis
6. GlaxoSmithKline
7. Pfizer
8. Boehringer Ingelheim
9. ESRC [ES/G026300/1] Funding Source: UKRI
10. MRC [MC_U105260558] Funding Source: UKRI
11. Economic and Social Research Council [ES/G026300/1] Funding Source: researchfish
12. Medical Research Council [MC_U105260558] Funding Source: researchfish