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Table 3 Inter-observer reliability of vertebral osteosclerosis (К) between different observers (W, K, B, and U) and for different spinal segments (L1/2 to L5/S1)

From: Evaluation criteria for the assessment of occupational diseases of the lumbar spine - how reliable are they? -

Segment Observers
W/K W/B W/U K/B K/U B/U Mean
L1/L2 0,462 0,425 0,423 0,449 0,315 0,357 0,405
L2/L3 0,438 0,462 0,420 0,419 0,479 0,478 0,449
L3/L4 0,438 0,369 0,305 0,391 0,434 0,422 0,393
L4/L5 0,444 0,457 0,396 0,486 0,493 0,450 0,454
L5/S1 0,484 0,480 0,394 0,403 0,391 0,417 0,428
Mean 0,453 0,439 0,388 0,430 0,422 0,425 0,426