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. 2023 Mar 31;102(13):e33341. doi: 10.1097/MD.0000000000033341

Table 3.

GRADE certainty of evidence of outcomes.

Outcomes Number of participants (studies) Illustrative comparative risks* (95% CI) Absolute effect (95% CI) Certainty of evidence (GRADE)
Control Cupping
Waist circumference (cm) 302 (4 studies) The mean WC loss in the control groups ranged from 3.9 lost to 0.33 lost The mean WC loss in the intervention groups was 6.07 lower than control group MD 6.07 lower (8.44–3.71 lower) ⊕⊕⊕⊝
moderate
Weight (kg) 261 (3 studies) The mean Weight loss in the control groups ranged from 2.9 lost to 7.9 lost The mean Weight loss in the intervention groups was 2.46 lower than control group MD 2.46 lower (4.25–0.68 lower) ⊕⊕⊕⊕
high
BMI 261 (3 studies) The mean BMI loss in the control groups ranged from 1.3 lost to 2.5 lost The mean BMI loss in the intervention groups was 1.26 lower than control group MD 1.26 lower (2.11–0.40 lower) ⊕⊕⊕⊕
high
Total fat (%) 159 (2 studies) The mean total Fat loss in the control groups ranged from 0.2 lost to 1.29 lost The mean total Fat loss in the intervention groups was 1.49 lower than control group MD 1.49 lower (4.51 lower–1.54 higher) ⊕⊕⊝⊝
low
SBP (mm Hg) 200 (3 studies) The mean SBP loss in the control groups ranged from 9.7 lost to 2.78 gain The mean SBP loss in the intervention groups was 1.97 lower than control group MD 1.97 lower (4.85 lower–0.92 higher) ⊕⊕⊕⊝
moderate
DBP (mm Hg) 200 (3 studies) The mean DBP loss in the control groups ranged from 6 lost to 0.06 gain The mean DBP loss in the intervention groups was 0.05 higher than control group MD 0.05 higher (2.58 lower–2.68 higher) ⊕⊕⊕⊝
moderate
TC (mg/dL) 159 (2 studies) The mean TC loss in the control groups ranged from 19.3 lost to 3.1 gain The mean TC loss in the intervention groups was 6.48 lower than control group MD 6.48 lower (22.43 lower–9.47 higher) ⊕⊕⊝⊝
low
TG (mg/dL) 200 (3 studies) The mean TG loss in the control groups ranged from 71.9 lost to 18.6 lost The mean TG loss in the intervention groups was 18.27 lower than control group MD 18.27 lower
(71.85 lower to 35.31 higher)
⊕⊝⊝⊝
very low
HDL-C (mg/dL) 200 (3 studies) The mean HDL-C gain in the control groups ranged from 5.0 lost to 15.5 gain The mean HDL-C gain in the intervention groups was 2.09 higher than control group MD 2.09 higher (5.71 lower–9.88 higher) ⊕⊝⊝⊝
very low
LDL-C (mg/dL) 159 (2 studies) The mean LDL-C loss in the control groups ranged from 15.4 lost to 0.9 lost The mean LDL-C loss in the intervention groups was 3.98 lower than control group MD 3.98 lower (6.99 lower–0.96 lower) ⊕⊕⊕⊕
high
FBG (mg/dL) 200 (3 studies) The mean FBG loss in the control groups ranged from 21.6 lost to 8.3 gain The mean FBG loss in the intervention groups was 9.18 lower than control group MD 9.18 lower (25.46 lower–7.10 higher) ⊕⊝⊝⊝
very low
hs-CRP (mg/L) 159 (2 studies) The mean hs-CRP loss in the control groups ranged from 0.6 lost to 0.2 lost The mean hs-CRP loss in the intervention groups was 0.10 lower than control group MD 0.10 lower (0.23 lower–0.03 higher) ⊕⊕⊕⊝
moderate

Population: patients with metabolic syndrome/Intervention: cupping therapy/Comparison: control group.

BMI = body mass index, DBP = diastolic blood pressure, FBG = fasting blood glucose, HDL-C = high density lipoprotein cholesterol, hs-CRP = high sensitivity C-Reactive Protein, LDL-C = low density lipoprotein cholesterol, MD = mean difference, SBP = systolic blood pressure, TC = total cholesterol, TG = triglyceride, WC = waist circumference.