Factors affecting adherence to the treatment regimen of tuberculosis patients: Assessing the efficiency of health belief model constructs


Mohammad Sarani 1 , Mahmood Karimy 2 , Fatemeh Rakhshani 3 , Jalil Kuhpayehzadeh 4 , Hamid Baradaran 4 , Iraj Zareban 5 , *


1 Dept. of Health Education, Zabol University of Medical Sciences, Zabol, Iran

2 Dept. of Public Health, Faculty of Health, Saveh University of Medical Sciences, Saveh, Iran

3 Dept. of Health Education, Faculty of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran

4 Dept. of Community Medicine, Faculty of Medicine, Iran University of Medical Sciences,Tehran, Iran

5 Dept. of Health Education, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran


Journal of Kermanshah University of Medical Sciences: 18 (4); e74111
Published Online: July 29, 2014
Article Type: Research Article
Received: April 14, 2014
Accepted: July 15, 2014




Background: Low adherence to the treatment regimen in tuberculosis patients has been recognized as a major threat for tuberculosis (TB) control program. Thus, the present study was conducted to assess the factors affecting adherence to the treatment regimen of TB patients via Health Belief Model (HBM).

Methods: In this cross-sectional study,110 tuberculosis patients attending anti-TB center in Zabol were selected and included in the study using census method. Data were collected using Health Belief Model (HBM) questionnaire and reviewing the patients' medical files. The collected data were analyzed by SPSS software using t-test, ANOVA and multiple regression analysis with 95 % confidence level.

Results: The mean age of the participants was 55.7±18.6 years. 89% of the patients had pulmonary tuberculosis and 11% had extra-pulmonary tuberculosis. The multiple regression analysis showed knowledge, self-efficacy, perceived benefits and perceived threat were significant predictors of adherence to the treatment regimen. The HBM constructs accounted for 29% of the variance observed in adherence to the treatment regimen.

Conclusion: The findings of the study highlight the need to increase awareness and change the patients’ beliefs about the risks of low adherence to the treatment regimen in patients.


Health Belief Model treatment regimen tuberculosis

© 2014, Journal of Kermanshah University of Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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