Fig. 1
From: Validity assessment of the PROMIS fatigue domain among people living with HIV
Box and whisker plots showing the distribution of PROMIS® 7a fatigue scores on the PROMIS® T score metric for each level of fatigue according to the HIV symptoms inventory fatigue item* (a); for people with different recent CD4+ T-cell counts (b), and with and without Hepatitis C virus co-infection (c). *For these plots, the box shows the 25th and 75th percentile scores, and the median is shown with a white vertical bar within the box. The whiskers show 1.5 times the extent of the box. Dots show more extreme values. In a, the median score for the group who denied having fatigue was around 40; the median for those who had fatigue but stated it did not bother them was around 45; the median score for those who had fatigue that bothered them a little was around 53; the median score for those who had fatigue that bothered them was around 58; and the median score for those who had fatigue that bothered them a lot was around 66