Patient risk profiles and practice variation in nonadherence to antidepressants, antihypertensives and oral hypoglycemics
2007

Understanding Why Patients Don't Take Their Medications

Sample size: 110102 publication 10 minutes Evidence: moderate

Author Information

Author(s): Liset van Dijk, Eibert R. Heerdink, Dinesh Somai, Sandra van Dulmen, Emmy M. Sluijs, Denise T. de Ridder, Anna M.G.F. Griens, Jozien M. Bensing

Primary Institution: NIVEL, Netherlands Institute for Health Services Research

Hypothesis

What are the risk profiles for nonadherence to antidepressants, antihypertensives, and oral hypoglycemics based on socio-demographic characteristics and medication characteristics?

Conclusion

No clear risk profiles for nonadherence could be constructed, as characteristics correlated with nonadherence vary across different types of medication.

Supporting Evidence

  • Non-western immigrants were more likely to be nonadherent to both antihypertensives and antidepressants.
  • Early dropout rates were highest for antidepressants, followed by antihypertensives.
  • GP consultations positively influenced adherence to antihypertensives.
  • Somatic co-morbidity negatively influenced adherence to antidepressants.

Takeaway

Some people forget or don't want to take their medicine, and this study looked at why that happens for different types of medicine.

Methodology

Data were linked from a general practice registration database and a dispensing registration database, analyzing patients using multilevel modeling.

Potential Biases

Potential bias due to the exclusion of patients from dispensing general practices and those with missing data.

Limitations

The study excluded dispensing general practices and had a significant number of patients with missing data.

Participant Demographics

Included patients using antidepressants, antihypertensives, or oral hypoglycemics, with a focus on socio-demographic characteristics like age, gender, and ethnicity.

Statistical Information

P-Value

p<0.05

Confidence Interval

[0.63–0.95]

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1472-6963-7-51

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