Table 2. Study analysis table for the considered studies of reference.
TC – total cholesterol, LDL-C – Low-density lipoprotein cholesterol, HDL-C - high-density, lipoprotein cholesterol, BP – blood pressure, SBP – systole blood pressure, DBP – diastole blood pressure, CVD – cardiovascular diseases, vs – versus
| Author | Aims of the Study | Intervention | Outcomes of the Study (Intervention vs. Control) | |
| Xu et al. (2020) [1] | Assess the effect of green tea on total cholesterol, LDL, HDL, and triglyceride levels | 80 to 2488.7 mg/d green tea catechin | TC: -4.66 mg/dL to -2.96 mg/dL LDL-C: -4.55 to -2.80 mg/dL HDL-C: nil | |
| Xu et al. (2022) [2] | Effects and benefits of green tea on blood pressure | 208 to 1344 mg/d green tea catechin | SBP: - 2.18 vs -1.17 mmHg DBP: -2.07 vs 1.24 mmHg | |
| Abe et al. 2021 [6] | Outcomes of green tea focusing on diabetes, cancer sites, and cardiovascular disease | One to three cups of green tea consumption | Risk of CVDs: 36% vs 17 % reduction, SBP: -2.1 vs -1.92 mmHg DBP: -1.92 to 1.7 mmHg | |
| Kishimoto et al. (2020) [7] | The associations between the consumption of green tea and coffee and the prevalence of coronary artery disease | Green tea consumption | CVD risk decrease: 3cups/day vs 1cup/day : 0.54 vs 0.3-0.98 | |
| Chung et al. (2020) [10] | To provide comprehensive and updated evidence on the relation between tea consumption and risks of CVD and all-cause mortality. | 338 mg green tea consumption | CVD Mortality: 4% vs 2% lower risk | |
| Yang et al. (2018) [15] | To examine the benefits of green tea | 300mg green tea consumption | CVD Risk: -28% vs nil | |
| Monnier et al. (2022) [19] | The health benefits of green tea | Three to ten cups/day green tea consumption | CVD Mortality: -28% vs 14% BP: -6.5% LDL-C: -2.6% | |
| Abby et al. (2021) [20] | Evaluation of data on reduced CVD risks and their severity by green tea | 236.6 mL green tea consumption | CVD Mortality: 0.98 vs 0.96 TC: -5.47 vs -1.67 mg/dL LDL-C: -11.02 VS -3.21 mg/dL HDL-C: -1.12 vs -0.38 mg/dL SBP: -2.80 vs -1.8 mmHg DBP: -3.06 vs – 1.27 mmHg | |
| Teramoto et al. (2021) [21] | The beneficial health effects and possible mechanisms involved | Green tea consumption | CVD Mortality: 4% vs 2% lower risk SBP: Not indicated DBP: Not indicated | |
| Huang et al. (2018) [22] | To examine the effects of green tea extract. | Green tea extract | LDL-C: -25.7% vs 4.8 | |