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Patient Global Impression of Change Scale
Patient Global Impression of Change Scale
| Availability |
Available in the public domain: Patient Global Impression of Change
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| Classification |
Exploratory: Headache
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| Short Description of Instrument |
The Patient Global Impression of Change (PGIC) is a single-item measure of global improvement with treatment on which participants use a seven-point scale ("1=very much improved" to "7=very much worse").
The PGIC is used to provide a score which will inform the discussion by the provider with the patient about their progress and overall change in their symptoms.
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| References |
Bromberg J, Wood ME, Black RA, Surette DA, Zacharoff KL, Chiauzzi EJ. A Randomized Trial of a Web-based Intervention to Improve Migraine Self- Management and Coping. Headache. 2012;52(2):244-261.
Cady R, Saper J, Dexter K, Manley HR. A double-blind, placebo-controlled study of repetitive transnasal sphenopalatine ganglion blockade with tx360(®) as acute treatment for chronic migraine. Headache. 2015;55(1):101-116.
Dodick DW, Silberstein S, Saper J, Freitag FG, Cady RK, Rapoport AM, Mathew NT, Hulihan J, Crivera C, Rupnow MF, Mao L, Finlayson G, Greenberg SJ. The impact of topiramate on health-related quality of life indicators in chronic migraine. Headache. 2007;47(10):1398-1408.
Hurst H, Bolton J. Assessing the clinical significance of change scores recorded on subjective outcome measures. J Manipulative Physiol Ther. 2004;27(1):26-35.
Silberstein S, Goode-Sellers S, Twomey C, Saiers J, Ascher J. Randomized, double-blind, placebo-controlled, phase II trial of gabapentin enacarbil for migraine prophylaxis. Cephalalgia. 2013;33(2):101-111.
Document last updated April 2020
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| Recommended Instrument for |
Headache
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