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. Author manuscript; available in PMC: 2008 Apr 1.
Published in final edited form as: Pain. 2006 Oct 27;128(3):244–253. doi: 10.1016/j.pain.2006.09.024

Table 4.

Test-retest reliabilities of NFR thresholds calculated from empirically-derived criterion cut-points in Study 1.

Day 1
Day 2
Criterion Variable Block 1 Block 2 Block 3 Block 4
Baseline Adjusted NFR Interval Peak
 Day 1, Block 1 -
 Day 1, Block 2 0.71 -
 Day 2, Block 3 0.60 0.78 -
 Day 2, Block 4 0.80 0.76 0.74 -
NFR Interval Peak z score
 Day 1, Block 1 -
 Day 1, Block 2 0.79 -
 Day 2, Block 3 0.66 0.69 -
 Day 2, Block 4 0.77 0.81 0.77 -
Baseline Adjusted NFR Interval Mean
 Day 1, Block 1 -
 Day 1, Block 2 0.79 -
 Day 2, Block 3 0.76 0.80 -
 Day 2, Block 4 0.68 0.64 0.71 -
NFR Interval z score
 Day 1, Block 1 -
 Day 1, Block 2 0.79 -
 Day 2, Block 3 0.68 0.72 -
 Day 2, Block 4 0.59 0.55 0.67 -

Note: NFR = nociceptive flexion reflex. The following cut-points were used: Baseline Adjusted NFR Interval Peak = 7.76, NFR Interval Peak z score = 10.32, Baseline Adjusted NFR Interval Mean = 1.01, NFR Interval z score = 1.38