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Table 9 Inter-observer reliability of spondylarthritis (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 0,208 0,185 0,209 0,293 0,257 0,233 0,231
L2/L3 0,265 0,227 0,227 0,327 0,327 0,291 0,277
L3/L4 0,281 0,303 0,369 0,227 0,141 0,235 0,259
L4/L5 0,332 0,172 0,357 0,299 0,368 0,376 0,317
L5/S1 0,280 0,343 0,337 0,300 0,260 0,208 0,288
Mean 0,273 0,246 0,300 0,289 0,271 0,269 0,275