. 2017 Jan 6;12(1):e0169318. doi: 10.1371/journal.pone.0169318

Table 3. Correlations between the personal/occupational factors, the perceived shoulder symptoms (NMQ^θ) and the perfusion characteristics (LDF^◊)^a.

	NMQ^θ Level of pain	NMQ^θ Pain duration	NMQ^θ Symptom effect	LDF^◊ PMBF value	LDF^◊ MMBF value	LDF^◊ PP value
Age	0.282	0.512^**	0.260	-0.511^*	-0.621^*	0.136
BMI	0.179	0.290	0.188	-0.391^*	-0.242	0.200
Duration of employment	0.264	0.437^**	0.261	-0.460^*	-0.507^*	0.282
Working time/ week	0.152	0.178	0.158	-0.030	-0.013	-0.008
Break time/ day	-0.389^*	-0.358^*	-0.399^*	0.175	0.257	0.236

*: p <0.05

**: p<0.01

^a: analyzed by spearman test.

^θ: n = 37 for questionnaire survey.

^◊: n = 27 for LDF measurement, MMBF>100 were excluded (n = 3).

Table 3. Correlations between the personal/occupational factors, the perceived shoulder symptoms (NMQθ) and the perfusion characteristics (LDF◊)a.