Details:

Alternative Title:
Appl Math (Irvine)
Personal Author:
Pan, Qiyuan ; Wei, Rong ;
Pan, Qiyuan ; Wei, Rong ; Less -
Description:
In his 1987 classic book on multiple imputation (MI), Rubin used the fraction of missing information, |, to define the relative efficiency (RE) of MI as RE = (1 + |/|)|, where | is the number of imputations, leading to the conclusion that a small | (≤5) would be sufficient for MI. However, evidence has been accumulating that many more imputations are needed. Why would the apparently sufficient | deduced from the RE be actually too small? The answer may lie with |. In this research, | was determined at the fractions of missing data (|) of 4%, 10%, 20%, and 29% using the 2012 Physician Workflow Mail Survey of the National Ambulatory Medical Care Survey (NAMCS). The | values were strikingly small, ranging in the order of 10| to 0.01. As | increased, | usually increased but sometimes decreased. How the data were analysed had the dominating effects on |, overshadowing the effect of |. The results suggest that it is impossible to predict | using | and that it may not be appropriate to use the |-based RE to determine sufficient |.
Subject:
[+]
Article
Fraction Of Missing Information (γ)
Missing Data
Multiple Imputation
NAMCS
Sufficient Number Of Imputations

Source:
Appl Math (Irvine). 7(10):1057-1067
Pubmed ID:
27398259
Pubmed Central ID:
PMC4934387
Document Type:
Journal Article ;
Funding:
CC999999/Intramural CDC HHS/United States ;
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:a400981442b428327b46675c350f7c530d0ec91dd033964be28de32d8b5b7f28
File Type:

Supporting Files

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