Instrument details

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Instrument Title

SMAQ: Simplified Medication Adherence Questionnaire

View PDF - SMAQ_Knobel.pdf

Source Article

Knobel, H., Alonso, J., Casado, J. L., Collazos, J., González, J., Ruiz, I., ... & GEEMA Study Group. (2002). Validation of a simplified medication adherence questionnaire in a large cohort of HIV-infected patients: the GEEMA Study. Aids, 16(4), 605- 613.

Response Options

  • Q1-3, 5: Yes/No
  • Q4: 5-point Likert scale (ranging from “Never” to “> 10 times”)
  • Q6: ≤ 2 days or > 2 days

Survey Items

  1. Do you ever forget to take your medicine?
  2. Are you careless at times about taking your medicine?
  3. Sometimes if you feel worse, do you stop taking your medicines?
  4. Thinking about the last week. How often have you not taken your medicine?
  5. Did you not take any of your medicine over the past weekend?
  6. Over the past 3 months, how many days have you not taken any medicine at all?

Internal Reliability

Cronbach’s α = 0.75. Inter-rater reliability was assessed.

Validity

Criterion-related validity was assessed via comparison with virologic outcomes.

Google Scholar

View article on Google Scholar

Terms Of Use

Individuals may use this information for research or educational purposes only and may not use this information for commercial purposes. When using this instrument, please cite:

Knobel, H., Alonso, J., Casado, J. L., Collazos, J., González, J., Ruiz, I., ... & GEEMA Study Group. (2002). Validation of a simplified medication adherence questionnaire in a large cohort of HIV-infected patients: the GEEMA Study. Aids, 16(4), 605- 613.

When presenting results using any survey information you obtained from the SABI, please acknowledge the University of North Carolina at Chapel Hill Center for AIDS Research (CFAR), an NIH funded program P30 AI50410.