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. 2020 Dec 5;25(4):369–386. doi: 10.1016/j.bjpt.2020.11.003

Table 2.

Quality of evidence assessment (GRADE).

Quality assessment (GRADE)
Summary of findings
Number of studies Risk of bias Inconsistency Indirectness Imprecision Publication bias Overall quality of evidence Number of participants
Effect
VRCR CR Effect Size (95% CI)
Upper limb function - post intervention
11 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 196 194 SMD 1.06 (0.42, 1.69)
Upper limb function - Short term
2 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 42 51 SMD 3.04 (0.43, 5.66)
Lower limb function (Gait) - post intervention
5 RCTs Seriousa Not Serious Not Serious Seriousc Undetected ≍≍⨁⨁ Low 62 61 SMD -0.08 (-0.45, 0.29)
Lower limb function (Gait) - Short term
- - - - - - - - - -
Lower limb function (Strength) - post intervention
2 RCTs Seriousa Not Serious Not Serious Seriousc Not Serious ≍≍⨁⨁ Low 22 23 SMD 0.66 (0.01, 1.32)
Lower limb function (Strength) - Short term
- - - - - - - - - -
Postural control and Balance - post intervention
6 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 62 62 SMD 0.43 (-0.11, 0.97)
Postural control and Balance - Short term
- - - - - - - - - -
Quality assessment (GRADE)
Summary of findings
Number of studies Risk of bias Inconsistency Indirectness Imprecision Publication bias Overall quality of evidence Number of studies
Effect
VR CR Effect Size (95% CI)
Upper limb function - post intervention
4 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 70 78 SMD 0.48 (-0.47, 1.43)
Upper limb function - Short term
1 RCT Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 8 16 SMD 3.95 (-4.86, 12.75)
Lower limb function (Gait) - post intervention
2 RCTs Seriousa Not Serious Not Serious Seriousc Undetected ≍≍⨁⨁ Low 55 55 MD 0.33 (-0.09, 0.75)
Lower limb function (Gait) - Short term
- - - - - - - - - -
Lower limb function (Strength) - post intervention
1 RCT Seriousa Not Serious Not Serious Seriousc Undetected ≍≍⨁⨁ Low 40 40 MD -0.30 (-1.49, 0.89)
Lower limb function (Strength) - Short term
- - - - - - - - - -
Postural control and Balance - post intervention
3 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 56 56 SMD 1.43 (0.6, 2.24)
Postural control and Balance - Short term
1 RCT Seriousa Not Serious Not Serious Seriousc Undetected ≍≍⨁⨁ Low 16 16 MD 0.48 (-0.31, 1.27)
Quality assessment (GRADE)
Summary of findings
Number of studies Risk of bias Inconsistency Indirectness Imprecision Publication bias Overall quality of evidence Number of studies
Effect
VR Control Effect Size (95% CI)
Upper limb function - post intervention
2 RCTs Seriousa Seriousb Not Serious Seriousc Undetected ≍≍≍⨁ Very low 58 57 SMD 0.64 (-0.4, 1.67)
Upper limb function - Short term
- - - - - - - - - -
Lower limb function (Gait) - post intervention
2 RCTs Seriousa Not Serious Not Serious Seriousc Undetected ≍≍⨁⨁ Low 66 63 SMD 0.67 (0.13, 1.21)
Lower limb function (Gait) - Short term
- - - - - - - - - -
Lower limb function (Strength) - post intervention
1 RCT Seriousa Not Serious Not Serious Seriousc ≍≍⨁⨁ Low 46 43 MD 2.60 (1.03, 4.17)
Lower limb function (Strength) - Short term
- - - - - - - - - -
Postural control and Balance - post intervention
- - - - - - - - - -
Postural control and Balance - Short term
- - - - - - - - - -

Abbreviations: GRADE, Grading of Recommendations Assessment Development and Evaluation; RCTs, randomized controlled trials; VRCR, virtual reality plus conventional rehabilitation; CR, conventional rehabilitation; MD, mean difference; SMD, standardised mean differences; CI, confidence interval; VR, virtual reality.

a

> 25% of the participants from studies with high risk of bias.

b

I2 test is greater than 50%.

c

Sample size is less than 400 participants and large CI.