| | Author | Year | Country | Study type | Sample | Male (%) | Overall age | Hypertension (%) | Diabetes mellitus (%) | Smoking (%) | Hyperlipidemia (%) | BMI | Indicators | NOS score | Jadad score |
| | Aoi [9] | 2019 | USA | Retrospective | 408 (202 vs. 206) | 64.9 vs.62.6 | 69.2 vs.68.8 | 85.6 vs.95.1 | 37.6 vs.45.6 | 33.3 vs.25.2 | 83.7 vs.91.7 | 26.5 vs.27.1 | 1, 2, 3, 5, 9 | 7 (3/2/2) | — | | Amin [10] | 2017 | Bangladesh | Prospective | 100 (50 vs.50) | — | — | — | — | — | — | — | 1, 2, 4 | 7 (4/0/3) | — | | Bhambhani [11] | 2020 | India | Prospective | 200 (100 vs.100) | 84 vs.73 | 54.6 vs.54.9 | 59 vs.50 | 40 vs.35 | 39 vs.32 | — | — | 1, 5, 6, 7, 8 | 9 (4/2/3) | — | | Coughlan [12] | 2018 | Ireland | Prospective | 94 (47 vs.47) | 83 vs.74.5 | 61 vs.61.8 | — | — | — | — | — | 6, 7, 8, 9 | 9 (4/2/3) | — | | Gajurel [13] | 2018 | Nepal | Prospective | 164 (82 vs.82) | 58.5 vs.53.6 | 57.7 vs.57.2 | 35.3 vs.29.2 | 25.6 vs.18.2 | 43.9 vs.32.9 | 20.7 vs.12.1 | — | 1, 2, 3 | 9 (4/2/3) | — | | Hammami [14] | 2021 | Tunisia | Prospective | 177 (82 vs. 95) | 62 vs.70 | 59.23 vs.60.38 | 40 vs.44 | 45 vs.40 | 41.5 vs.42 | — | — | 1, 3, 4 | 9 (4/2/3) | — | | Kis [15] | 2020 | Turkey | Prospective | 41 (17 vs.24) | 70.6 vs.70.8 | — | 70.6 vs.79.2 | 47.1 vs.33.3 | 35.3 vs.29.2 | 41.2 vs.37.5 | — | 2, 3 | 9 (4/2/3) | — | | Kaledin [16] | 2017 | Russia | Prospective | 5874 (2775 vs.3099) | — | — | — | — | — | — | — | 1 | 7 (4/0/3) | — | | Koutouzis [17] | 2019 | Greece | Randomized | 200 (100 vs.100) | 74 vs.77 | 63.8 vs.62.8 | 73 vs.63 | 27 vs.28 | 35 vs.28 | 71 vs.59 | 28.6 vs.29 | 1, 2, 3, 4, 5, 6, 7, 8 | — | 3 (2/0/1) | | Lin [18] | 2020 | China | Randomized | 900 (450 vs.450) | 45.56 vs.50 | 55.28 vs.58.81 | 24.89 vs.25.11 | 10.67 vs.12.44 | 27.56 vs.22.44 | — | 24.06 vs.24.36 | 1, 2, 4, 5, 9 | — | 3 (2/0/1) | | Lu [19] | 2020 | China | Prospective | 80 (40 vs.40) | 57.5 vs.62.5 | 54.3 vs.56.4 | — | 15 vs.17.5 | — | — | — | 1, 2, 4 | 8 (4/2/2) | — | | Roghani-Dehkordi [20] | 2020 | Iran | Prospective | 126 (70 vs.56) | 62.8 vs.64.3 | 55.1 vs.56.5 | 57.1 vs.67.8 | 74.2 vs.80.3 | 67.1 vs.78.6 | 31.4 vs.28.6 | 28.4 vs.27.2 | 1, 5, 6, 8 | 9 (4/2/3) | — | | Soydan [21] | 2021 | Turkey | Prospective | 70 (27 vs.43) | 63 vs.72.1 | — | 77.8 vs.76.7 | 40.7 vs.39.5 | 33.3 vs.27.9 | 48.1 vs.30.2 | — | 4 | 9 (4/2/3) | — | | Wang [22] | 2020 | China | Prospective | 620 (312 vs.308) | 51.3 vs.51 | 50.1 vs.51.2 | 60.6 vs.56.5 | 31.4 vs.28.2 | 56.4 vs.54.5 | 44.2 vs.41.9 | — | 1, 2, 3, 4, 5, 8 | 8 (4/2/2) | — |
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