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Table 1 Study characteristics

From: Pharmacological use of gamma-aminobutyric acid derivatives in osteoarthritis pain management: a systematic review

Study

Setting

Sample size

Study design

Follow up duration (weeks)

Sofat et al. [15]

St George’s University Hospitals, United Kingdom

65

Double-blind RCT comparing efficacy of pregabalin, duloxetine, and placebo

13

Ohtori et al. [17]

Chiba University Hospital, Japan

89

Open label RCT comparing efficacy of meloxicam, pregabalin, and combined usage of the two

4

Enteshari-Moghaddam et al. [18]

Ardabil University of Medical Sciences, Iran

150

Double-blind RCT comparing efficacy of gabapentin, duloxetine, and acetaminophen

12