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Table 5 Comparison of this sample with prior research samples investigating Multidimensional Pain Inventory subgroup stability

From: Reliability of the Multidimensional Pain Inventory and stability of the MPI classification system in chronic back pain

Authors Number of patients Main diagnosis Average time between test-retest Percentage of unstable patients at retest
Current study n = 204 Chronic back pain (82%) 28 days 22%
Junghaenel & Broderick [12] n = 99 Low back pain (84%) 14 days 28%
McKillop & Nielsen [13] n = 376 Fibromyalgia (100%) 56 days 33%
Broderick et al [11] n = 199 Fibromyalgia (100%) 27 days 35%