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Erratum | Open | Published:

Erratum to: Benefits of applying a proxy eligibility period when using electronic health records for outcomes research: a simulation study

The original article was published in BMC Research Notes 2015 8:229

Erratum to: BMC Res Notes (2015) 8:229 DOI 10.1186/s13104-015-1217-6

After publication of the original article [1], Additional file 1 was updated with the following statement, located towards the end of the document:

“Reproduced with permission from: Mannino DM, Higuchi K, Yu T-C, Zhou H, Li Y, Tian H, et al. Economic burden of chronic obstructive pulmonary disease by presence of comorbidities. CHEST Journal. Published online February 12, 2015. doi:10.1378/chest.14-2434.”

This is to credit an earlier publication in which the same additional file was used. The updated additional file (Additional file 1) can be found below.

Reference

  1. 1.

    Yu TC, Zhou H (2015) Benefits of applying a proxy eligibility period when using electronic health records for outcomes research: a simulation study. BMC Res Notes 8:229. doi:10.1186/s13104-015-1217-6

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Author information

Correspondence to Tzy-Chyi Yu.

Additional information

The online version of the original article can be found under doi:10.1186/s13104-015-1217-6.

Additional file

Additional file 1:

Table S1. Table of the ICD-9 CM codes for comorbidities of interest.

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