Skip to main content
. 2013 Aug 5;8(8):e70694. doi: 10.1371/journal.pone.0070694

Figure 4. Associations between genotypes of the rs3845446 A/G SNP and fentanyl use.

Figure 4

Associations between genotypes of the rs3845446 A/G SNP (AA, n = 168; AG, n = 148; GG, n = 39) and (A) intraoperative fentanyl use and (B) perioperative fentanyl use. The data are expressed by box and whisker plots. The upper and lower ends of the boxes represent the 75th and 25th percentiles, respectively. Whiskers represent the highest and lowest values that are not outliers or extreme values. Outliers and extreme values are represented by circles and starbursts beyond the whiskers, respectively. The median is depicted by a solid line in the box.