Validity and Reliability of a New Instrument to Measure Cancer-Related Fatigue in Adolescents

Journal Article

Adolescents undergoing treatment for cancer rate fatigue as their most prevalent and intense cancer- and treatment-related effect. Parents and staff rate it similarly. Despite its reported prevalence, intensity, and distressing effects, cancer-related fatigue in adolescents is not routinely assessed during or after cancer treatment. We contend that the insufficient clinical attention is primarily due to the lack of a reliable and valid self-report instrument with which adolescent cancer-related fatigue can be measured. Our aim was to determine the reliability and construct validity of a new instrument and its ability to measure change in fatigue over time. Initial testing involved 64 adolescents undergoing curative treatment of cancer who completed the Fatigue Scale-Adolescent (FS-A) at two to four key points in treatment in one of four studies. Internal consistency estimates ranged from 0.67 to 0.95. Validity estimates involving the FS-A with the parent version ranged from 0.13 to 0.76; estimates involving the staff version and the Reynolds Depression Scale were 0.27 and 0.87, respectively. Additional validity findings included significant fatigue differences between anemic and nonanemic patients (P = 0.042) and the emergence of four factors in an exploratory factor analysis. Findings further indicate that the FS-A can be used to measure change over time (t = 2.55, P < 0.01). In summary, the FS-A has moderate to strong reliability and impressive validity coefficients for a new research instrument. © 2007 U.S. Cancer Pain Relief Committee.

Full Text

Duke Authors

Cited Authors

  • Hinds, PS; Hockenberry, M; Tong, X; Rai, SN; Gattuso, JS; McCarthy, K; Pui, C-H; Srivastava, DK

Published Date

  • 2007

Published In

Volume / Issue

  • 34 / 6

Start / End Page

  • 607 - 618

PubMed ID

  • 17629669

International Standard Serial Number (ISSN)

  • 0885-3924

Digital Object Identifier (DOI)

  • 10.1016/j.jpainsymman.2007.01.009