Fig. 2From: Development of the Hausa version of the Pain Catastrophizing Scale: translation, cross-cultural adaptation and psychometric evaluation in mixed urban and rural patients with chronic low back painTest–retest agreement of the Hausa Pain Catastrophizing Scale using Bland–Altman procedure (n = 100). Note: Y-axis represents the change in Hausa-PCS scores between baseline and follow-up measurements and X-axis represents the mean of the Hausa-PCS scores at the baseline and follow-up measurements. The center line is the mean change of score (0.870); upper (9.750) and lower (8.010) lines are the limits of agreement for 95% confidence intervalsBack to article page