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. 2017 Jun 8;12(6):e0178742.
doi: 10.1371/journal.pone.0178742. eCollection 2017.

Association among presence of cancer pain, inadequate pain control, and psychotropic drug use

Paula Parás-Bravo  1 , María Paz-Zulueta  1 , María Cristina Alonso-Blanco  2 , Paloma Salvadores-Fuentes  3 , Ana Rosa Alconero-Camarero  1 , Miguel Santibañez  1
Affiliations

Association among presence of cancer pain, inadequate pain control, and psychotropic drug use

Paula Parás-Bravo et al. PLoS One. .

Abstract

Introduction: Pain is a common symptom in cancer patients, and its control and management are complex. Despite the high concomitant use of psychotropic drugs among such patients, the association among pain, inadequate pain control, and psychotropic drug use has not been fully determined. This study examined the prevalence of cancer pain and inadequate pain control and the association with psychotropic drug use.

Materials and methods: In this cross-sectional study, we investigated 402 medical records obtained by simple random sampling of oncology patients at a hospital in northern Spain from July 2012 to July 2014. Adjusted odds ratios (ORs) were estimated together with their 95% confidence intervals (95% CIs) by unconditional logistic regression for each type of psychotropic drug (anxiolytics, hypnotics, and antidepressants).

Results: The mean patient age was 61.17 (standard deviation ± 13.14) years; 57.5% were women, 42.5% men. Pain was present in 18.4% of patients and inadequate pain control in 54.2%. We found a statistically significant association between the presence of cancer pain and anxiolytic use (adjusted OR, 3.15; 95% CI, 1.49-6.68) and hypnotic use (adjusted OR, 5.19; 95% CI, 1.77-15.25). Inadequate pain control was associated to a greater extent with the use of those drugs: adjusted OR for anxiolytic use, 4.74 (95% CI, 1.91-11.80); adjusted OR for hypnotic use, 6.09 (95% CI, 1.74-21.32). By contrast, no association was found between pain and antidepressant use (adjusted OR, 0.99).

Conclusion: The presence of pain and (to a greater extent) poor pain control were associated with increased use of certain psychotropic drugs, such as anxiolytics and hypnotics. There appeared to be no association between pain and antidepressant use.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Overall study flow.
See this image and copyright information in PMC

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