Table 2.

Comparison of waist circumference between the study and control groups

n=280
Duration	Study group		Control group		Mean difference	t P
	Mean	SD	Mean	SD
Pretest	78.00	4.14	74.536	4.517	−4.1643	−8.034 <0.001
Posttest 1	78.443	4.166	74.550	4.523	−3.8929	−7.490 <0.001
Posttest 2	77.650	4.026	74.607	4.502	−3.0429	−5.960 0.000 <0.001
Posttest 3	76.814	4.010	74.782	4.565	−2.0321	−3.957 <0.001
Posttest 4	75.914	4.049	74.599	4.306	−9.8571	−1.973 <0.05