Table 2 Certainty of evidence table
Certainty assessment | Summary of findings | |||||||
|---|---|---|---|---|---|---|---|---|
Outcomes | Risk of biasa | Indirectness | Inconsistency | Imprecisionb | Publication bias | GRADE | Relative effect (95%CI) | Number of participants (studies) |
Plant-rich diets | ||||||||
 BMI | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -0.09 (-0.24, 0.06) | 283 (3) |
 Weight | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -0.45 (-0.77, -0.13) | 432 (7) |
 Waist | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -0.70 (-1.42, 0.01) | 401 (6) |
 SBP | -1 | 0 | 0 | -1 | 0 | ⊕⊕○○ Low certainty evidence | -1.69 (-3.91, 0.54) | 231 (5) |
 DBP | -1 | 0 | 0 | -1 | 0 | ⊕⊕○○ Low certainty evidence | -0.49 (-2.34, 1.36) | 231 (5) |
 Glucose | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -0.24 (-3.06, 2.58) | 389 (6) |
 TC | 0 | 0 | 0 | 0 | 0 | ⊕⊕⊕⊕ High certainty evidence | -6.77 (-12.36, -1.18) | 420 (7) |
 HDL-C | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -0.02 (-1.81, 1.78) | 420 (7) |
 LDL-C | 0 | 0 | 0 | 0 | 0 | ⊕⊕⊕⊕ High certainty evidence | -4.37 (-7.59, -1.16) | 420 (7) |
 TG | 0 | 0 | 0 | -1 | 0 | ⊕⊕⊕○ Moderate certainty evidence | -5.90 (-14.38, 2.57) | 420 (7) |
Restrictive diets | ||||||||
 BMI | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -1.59 (-2.18, -0.99) | 475 (5) |
 Weight | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -4.02 (-5.26, -2.77) | 475 (5) |
 Waist | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -4.25 (-5.52, -2.98) | 475 (5) |
 SBP | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -4.01 (-8.74, 0.71) | 475 (5) |
 DBP | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -2.68 (-6.18, 0.81) | 475 (5) |
 Glucose | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -7.13 (-12.01, -2.25) | 485 (6) |
 TC | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -8.74 (-12.72, -4.76) | 485 (6) |
 HDL-C | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -0.24 (-2.00, 1.52) | 485 (6) |
 LDL-C | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -1.14 (-5.99, 3.71) | 485 (6) |
 TG | -1 | 0 | -1 | 0 | 0 | ⊕⊕○○ Low certainty evidence | -22.12 (-36.05, -8.19) | 485 (6) |