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Table 3 ICCs for inter-rater reliability

From: Reliability of three landmarking methods for dual inclinometry measurements of lumbar flexion and extension

Land marking technique Flexion Extension
Method 1- PSIS to L1 0.60 0.74
Method 2 – PSIS to cephalad 10 or 15 cm 0.66 0.76
Method 3 – PSIS to 15 cm cephalad 0.66 0.76