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. 2016 Jan 18;17:35. doi: 10.1186/s12891-016-0883-4

Table 5.

Layered cross-tabulation

Sensory demands Low PHYI High PHYI
MEI N % N %
Low sensory demands Low MEI 350 36 116 34
High MEI 68 41 143 44
High sensory demands Low MEI 150 31 91 36
High MEI 162 53 374 44

The prevalence (%) of neck pain in the total study population across combinations of dichotomized values (high and low) in sensory demands, mechanical exposure index (MEI) and physical exposure index (PHYI)