Table 2.

Short-term changes from P0^a to P1^b in outcome variables in the before-and-after study among workers with high BP^c (n=30).

Variables		P0ad, median (IQR)	P0be, median (IQR)	Changes from P0 to P1
				Median (95% CI)	P valuef
Physical activity
	Mean steps per dayg	N/Ah	10,020 (8548-11,519)	+1493 (+131 to +2584)	<.001
	Mean calories burned by activity (kcal per day)g	N/A	265 (248-331)	+50 (+6 to +83)	<.001
Mean home BP (mm Hg)g
	Morning—systolic	N/A	131.1 (126.3-141.4)	−0.2 (−3.4 to +2.4)	.66
	Morning—diastolic	N/A	89.7 (83.2-95.3)	−0.6 (−2.6 to +1.8)	.30
	Night—systolici	N/A	126.1 (119.1-136.4)	−3.1 (−6.2 to +2.7)	.23
	Night—diastolici	N/A	80.3 (77.3-84.5)	−1.2 (−5.0 to +1.1)	.44
Results of physical measurementj
	Body weight (kg)	66 (57.7-72.4)	N/A	−1.2 (−1.9 to −0.4)	<.001
	BMI (kg/m2)	23.7 (21.1-25.1)	N/A	−0.4 (−0.7 to −0.1)	<.001
	Visceral fat area (cm2)k	56.5 (46-88)	N/A	−1 (−8 to +3)	.18
Results of blood examinationl
	Hemoglobin A1c (%)	N/A	5.4 (5.1-5.5)	0 (0 to +0.1)	.94
	Fasting blood glucose (mg/dL)	N/A	88 (82-92)	+0.5 (−1 to +2)	.38
	Triglycerides (mg/dL)	N/A	104 (52-149)	−10 (−29 to +9)	.27
	HDLm cholesterol (mg/dL)	N/A	63 (48.5-79)	+3.5 (+1 to +8)	<.001
	Non-HDL cholesterol (mg/dL)	N/A	157.5 (129.5-189)	−3.5 (−18 to +6)	.20

^aP0: baseline.

^bP1: around week 6.

^cBP: blood pressure.

^dP0a: before the intervention.

^eP0b: baseline system use period.

^fAnalyzed using Wilcoxon signed rank test.

^gA participant who was hospitalized during week 5 was excluded (n=29).

^hN/A: not applicable.

ⁱA participant without measured data at P0b was excluded (n=28).

^jOverall, 10% (3/30) of the participants were excluded—3% (1/30) did not take physical measurements, and the other 7% (2/30) had breakfast on the day of the measurement at P1 (n=27).

^kAn additional participant was excluded because of inability to use the abdominal belt owing to pain (n=26).

^lOverall 7% (2/30) of the participants who did not take blood tests at P1 were excluded (n=28).

^mHDL: high-density lipoprotein.