Adherence in Internet-based interventions
Silje C Wangberg, Trine S Bergmo, Jan-Are K Johnsen
Norwegian Centre for Telemedicine, University Hospital of North Norway, Tromsø, Norway
Background: The Internet is a promising channel for delivering health-promoting interventions. A common problem for Internet-based interventions is low adherence. The current paper reports adherence rates from three different Internet-based trials with potential covariates.
Methods: Data on adherence and baseline characteristics of users were collected from three different Internet-based trials: one supporting diabetes self-management, one supporting smoking cessation, and one offering an online personal health record. Logging of web use was used as the measure of adherence in two of the trials, while logging of authentication SMS messages was used in the third.
Results: In all three trials, users dropped out at a high rate early in the intervention. The baseline variables that were related to use were self-efficacy, having smoking friends, age, gender, and education. Tailored emails increased use for up to five months into a one-year intervention.
Conclusion: Dropout from Internet-based trials is substantial, and attrition curves can be a valuable tool for more accurate pretrial estimates of sample size power. Automated follow-up of users via email seems likely to increase adherence and should be included in Internet-based interventions. Tailoring on baseline covariates to adherence such as self-efficacy could make them even more effective.
Keywords: Internet-based interventions, adherence, attrition, tailoring, self-efficacy
Readers of this article also read:
Danhua Du, Peng Gao, Linsen Hu, Yumei Yang, Feng Wang, et al
Published Date: 28 September 2008
Ping Jiao, Haiyan Xu
Published Date: 23 October 2008
Multifocal conjunctival leaks due to the use of mitomycin C mimicking the normal drainage of the tear from the lacrimal excretory ducts
Burak Turgut, Murat Kaya, Tamer Demir, et al
Published Date: 1 June 2010
Antipsychotic adherence, switching, and health care service utilization among Medicaid recipients with schizophrenia
Douglas L Noordsy, Glenn A Phillips, Daniel E Ball, et al
Published Date: 20 July 2010
Mannu P, Rinaldi S, Fontani V, Castagna A
Published Date: 15 June 2011
Neafsey EJ, Collins MA
Published Date: 11 August 2011
Randomized, double-blind, placebo-controlled, linear dose, crossover study to evaluate the efficacy and safety of a green coffee bean extract in overweight subjects
Vinson JA, Burnham BR, Nagendran MV
Published Date: 18 January 2012
Zha YY, Yang B, Tang ML, Guo QC, Chen JT, Wen LP, Wang M
Published Date: 29 June 2012
Margari F, Sicolo M, Spinelli L, Mastroianni F, Pastore A, Craig F, Petruzzelli MG
Published Date: 1 August 2012
Thomson NC, Patel M, Smith AD
Published Date: 14 September 2012