Comparison of intermittent pneumatic compression device and compression stockings for workers with leg edema and pain after prolonged standing: a prospective crossover clinical trial

Table 2 Post hoc results of comparison between the different treatment protocols (A-B, A-C, A-D, B-C, B-D, and C-D) on leg pain as a primary outcome

Protocol	△ between the groups	p value	95% CI
A-B	-0.21(1.34)	0.364	-0.64 ~ 0.23
A-C	-1.26(1.55)	< 0.001	-1.76 ~ -0.75
A-D	-1.18(1.34)	< 0.001	-1.61 ~ -0.75
B-C	-1.05(1.82)	0.002	-1.64 ~ -0.46
B-D	-0.97(1.75)	0.002	-1.54 ~ -0.41
C-D	0.08(1.33)	0.831	-0.35 ~ -0.51

Data are presented as mean difference (standard deviation)
Protocol A, no medical compression stocking (MCS) + natural rest; Protocol B, MCS + natural rest; Protocol C, no MCS + intermittent pneumatic compression (IPC); Protocol D, MCS + IPC; △, the difference of leg pain score measured by visual analog scale during T1-T2 between the different treatment protocols
Wilcoxon signed rank test on difference (p < 0.008)

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