Assessment of Load Manual Lifting among Shelf-Stoking Workers in Chain Stores: A Cross-Sectional Study

Table 4

Comparison of the median of the variable lifting index (VLI) in workers with/without symptoms in different body regions during 7 days prior to the study (n = 101).

Body region	VLI		P value^†
	With symptom	Without symptom
	Median (IQR)	Median (IQR)
Neck	1.544 (1.378, 3.270)	1.378 (0.644, 1.724)	0.164
Shoulders	2.110 (0.565, 3.280)	1.378 (0.852, 1.724)	0.632
Elbows	1.451 (1.013, 2.101)	1.378 (0.781, 1.724)	0.15
Wrists/hands	1.146 (0.688, 2.383)	1.388 (0.816, 1.724)	0.73
Upper back	1.671 (0, 1.006)	1.378 (0.712, 1.724)	0.485
Lower back	0.501 (0.370, 1.454)	1.398 (1.146, 1.724)	0.005
Hips/thighs^††	—	—	—
Knees	1.705 (0.725, 2.472)	1.378 (0.852, 1.721)	0.097
Ankles/feet	1.006 (0.453, 1.685)	1.398 (0.937, 1.724)	0.137

Variable lifting index, Interquartile range, ^†Mann–Whitney U test, ^††Missing data.