Display options
Cite
Fairclough DL, Cella DF. Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions. Qual Life Res. 1996;5(3):321-9doi: 10.1007/BF00433916.
Fairclough, D. L., & Cella, D. F. (1996). Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 5(3), 321-9. https://doi.org/10.1007/BF00433916
Fairclough, D L, and Cella, D F. "Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions." Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation vol. 5,3 (1996): 321-9. doi: https://doi.org/10.1007/BF00433916
Fairclough DL, Cella DF. Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions. Qual Life Res. 1996 Jun;5(3):321-9. doi: 10.1007/BF00433916. PMID: 8763800.
Copy Download .nbib Format: NLM
Share it on

Qual Life Res. 1996 Jun;5(3):321-9. doi: 10.1007/BF00433916.

Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions.

Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation

D L Fairclough, D F Cella

Affiliations

  1. Division of Biostatistics, Dana Farber Cancer Institute, Boston, MA 02115, USA.

PMID: 8763800 DOI: 10.1007/BF00433916

Abstract

The purpose of this investigation is to examine methods of scoring the FACT-G when there is non-response to individual questions. Using completed questionnaires from 350 patients, random and non-random missing responses where simulated. Seven methods of scoring the FACT-G are compared on the basis of accuracy (bias and precision) of both population estimates and prediction of individual scores. Substituting the mean of the completed items in the subscale when more than 50% are completed is generally the most unbiased and precise approach. Case deletion is the worst approach and results in clinically significant bias when the missing responses were non-random and a lack of precision when the rate of non-response was high.

References

  1. Med Care. 1988 Jul;26(7):724-35 - PubMed
  2. J Clin Oncol. 1984 May;2(5):472-83 - PubMed
  3. Stat Med. 1992 Oct-Nov;11(14-15):1861-70 - PubMed
  4. Biometrics. 1986 Dec;42(4):805-20 - PubMed
  5. Biometrics. 1994 Dec;50(4):1003-14 - PubMed
  6. J Clin Oncol. 1993 Mar;11(3):570-9 - PubMed
  7. Qual Life Res. 1994 Oct;3(5):339-52 - PubMed

MeSH terms

Publication Types

Grant support