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Table 4 Descriptive statistics of all study measures (n = 170)

From: The mechanical and inflammatory low back pain (MIL) index: development and validation

Instruments Minimum Maximum M SD
Backache index (BAI) 0 13 4.36 3.60
Morning back stiffness (MBS) 0 4 1.55 1.36
Roland Morris Questionaire (RMQ) 0 19 7.19 4.35
ILBP Index −1.31 1.89 .00 1.00
MLBP Index −3.95 .84 .00 1.00
ILBP_ + _MLBP −4.22 2.47 .00 1.56
  1. ILBP: inflammatory LBP; MLBP: mechanical LBP.