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J Med Econ. 2010;13(2):314-23. doi: 10.3111/13696998.2010.488985.

Healthcare utilization and costs incurred by patients with major depression after being switched from escitalopram to another SSRI for non-medical reasons.

Author information

1
Analysis Group, Inc., 111 Huntington Avenue, Boston, MA 02199, USA. ewu@analysisgroup.com

Abstract

OBJECTIVE:

To compare healthcare utilization and costs for major depressive disorder (MDD) patients treated with escitalopram and who were switched to another SSRI for non-medical reasons versus those who did not switch.

RESEARCH DESIGN AND METHODS:

Patients were identified in the Ingenix Impact Database (2003-2006). The analysis group included patients who remained on escitalopram for ≥ 90 days and switched to another SSRI within 45 days of end of supply days for non-medical reasons; the control group included matched individuals who did not switch within 45 days. Switching for medical reasons was defined as switching within 7 days after having a hospitalization, an emergency room (ER) visit, or a psychotherapy visit. Outcomes (all-cause and MDD-related) were analyzed over 3 months and included use of hospital, ER, outpatient visits and professional services, and healthcare costs. Outcomes were compared between the two groups using descriptive statistics and regression analyses controlling for differences in baseline characteristics. Costs were inflation adjusted to 2006 US dollars.

RESULTS:

The study included 2,805 matched pairs. Compared to controls, switchers had higher rates of all-cause and MDD-related hospitalizations (relative risk [RR] = 1.4 and 2.0, respectively) and all-cause and MDD-related ER visits (RR = 1.2 and 1.6, respectively, all p ≤ 0.05). Results from multivariate analyses show that switchers had higher medical costs (+$138), drug costs (+$149) and total healthcare costs (+$322) compared to patients in the control group (all p < 0.0001).

LIMITATIONS:

This study's limitations include its short observational period and definition of switching for non-medical reasons.

CONCLUSION:

Patients who were switched to another SSRI for non-medical reasons after being stabilized on escitalopram used more resources and had higher healthcare costs within 3 months of switching than patients who did not switch.

PMID:
20504111
DOI:
10.3111/13696998.2010.488985
[Indexed for MEDLINE]

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