Research Article

Effect of Acupoint Catgut Embedding for Middle-Aged Obesity: A Multicentre, Randomised, Sham-Controlled Trial

Table 4

Subgroup analysis of percentage reduction in waistline (%) by the male group and the female group based on the intention-to-treat principle.

Time pointPercentage of reduction from baseline (%) in the male group (n = 51)
Adjusted mean (95% confidence interval),
Percentage of reduction from baseline (%) in the female group (n = 165)
Adjusted mean (95% confidence interval),
ACE groupSham ACE groupDifferenceACE groupSham ACE groupDifference

4 weeks1.62 (0.47, 2.77), 0.0061.55 (0.23, 2.87), 0.0210.07 (-1.76, 1.91), 0.9361.96 (1.13, 2.79), <0.0011.81 (1.02, 2.59), <0.0010.15 (-0.98, 1.28), 0.791
8 weeks3.45 (2.04, 4.86), <0.0012.79 (1.15, 4.43), <0.0010.66 (-1.63, 2.96), 0.5684.55 (3.54, 5.56), <0.0012.98 (2.01, 3.96), <0.0011.57 (0.20, 2.94), 0.025
12 weeks5.22 (3.20, 7.23), <0.0013.81 (1.50, 6.13), 0.0011.40 (-1.80, 4.60), 0.3896.35 (5.30, 7.39), <0.0013.98 (3.06, 4.89), <0.0012.37 (1.04, 3.70), <0.001
16 weeks6.81 (5.05, 8.57), <0.0013.59 (1.61, 5.57), <0.0013.23 (0.57, 5.88), 0.0179.23 (8.11, 10.35), <0.0014.20 (3.19, 5.20), <0.0015.03 (3.57, 6.49), <0.001
28 weeks6.42 (4.52, 8.32), <0.0013.57 (1.37, 5.76), 0.0022.86 (-0.09, 5.80), 0.0578.96 (7.83, 10.09), <0.0014.25 (3.24, 5.26), <0.0014.71 (3.21, 6.20), <0.001
40 weeks6.41 (4.31, 8.51), <0.0013.06 (0.72, 5.40), 0.0113.35 (0.11, 6.60), 0.0438.91 (7.76, 10.06), <0.0013.58 (2.52, 4.64), <0.0015.33 (3.80, 6.85), <0.001
Overall4.99 (1.00, 8.98), 0.0153.06 (0.65, 5.47), 0.0131.93 (-0.37, 4.23), 0.1006.66 (1.35, 11.97), 0.0153.47 (1.57, 5.36), <0.0013.19 (1.99, 4.39), <0.001

Percentage of reduction from baseline = (before value − after value)/before value  100%. a value for interaction between sex and group, and interaction among sex, group, and visit time was 0.66 and 0.74, respectively. bAdjusted for baseline, age, married status, drinking and smoking status, duration of disease, and family history.