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Study flow diagram.
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Figure 1

Study flow diagram.

'Risk of bias' summary: review authors' judgements about each risk of bias item for each included study.
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Figure 2

'Risk of bias' summary: review authors' judgements about each risk of bias item for each included study.

Comparison 1 Epley versus control or placebo manoeuvre, Outcome 1 Complete resolution of vertigo symptoms (subjective report).
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Analysis 1.1

Comparison 1 Epley versus control or placebo manoeuvre, Outcome 1 Complete resolution of vertigo symptoms (subjective report).

Comparison 1 Epley versus control or placebo manoeuvre, Outcome 2 Conversion of a positive to a negative Dix‐Hallpike test.
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Analysis 1.2

Comparison 1 Epley versus control or placebo manoeuvre, Outcome 2 Conversion of a positive to a negative Dix‐Hallpike test.

Comparison 2 Epley versus Brandt‐Daroff exercises, Outcome 1 Resolution of symptoms and nystagmus on Dix‐Hallpike test.
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Analysis 2.1

Comparison 2 Epley versus Brandt‐Daroff exercises, Outcome 1 Resolution of symptoms and nystagmus on Dix‐Hallpike test.

Comparison 3 Epley versus Semont manoeuvre, Outcome 1 Resolution of nystagmus on provocation testing, at 7 days.
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Analysis 3.1

Comparison 3 Epley versus Semont manoeuvre, Outcome 1 Resolution of nystagmus on provocation testing, at 7 days.

Comparison 4 Epley versus hybrid (Gans) manoeuvre, Outcome 1 Resolution of nystagmus on provocation testing, at 7 days.
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Analysis 4.1

Comparison 4 Epley versus hybrid (Gans) manoeuvre, Outcome 1 Resolution of nystagmus on provocation testing, at 7 days.

Comparison 1. Epley versus control or placebo manoeuvre

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Complete resolution of vertigo symptoms (subjective report) Show forest plot

5

273

Odds Ratio (M‐H, Fixed, 95% CI)

4.42 [2.62, 7.44]

2 Conversion of a positive to a negative Dix‐Hallpike test Show forest plot

8

507

Odds Ratio (M‐H, Fixed, 95% CI)

9.62 [6.00, 15.42]

Figuras y tablas -
Comparison 1. Epley versus control or placebo manoeuvre
Comparison 2. Epley versus Brandt‐Daroff exercises

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Resolution of symptoms and nystagmus on Dix‐Hallpike test Show forest plot

1

81

Odds Ratio (M‐H, Fixed, 95% CI)

12.38 [4.32, 35.47]

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Comparison 2. Epley versus Brandt‐Daroff exercises
Comparison 3. Epley versus Semont manoeuvre

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Resolution of nystagmus on provocation testing, at 7 days Show forest plot

2

117

Odds Ratio (M‐H, Fixed, 95% CI)

0.78 [0.32, 1.88]

Figuras y tablas -
Comparison 3. Epley versus Semont manoeuvre
Comparison 4. Epley versus hybrid (Gans) manoeuvre

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Resolution of nystagmus on provocation testing, at 7 days Show forest plot

1

58

Odds Ratio (M‐H, Fixed, 95% CI)

0.67 [0.18, 2.52]

Figuras y tablas -
Comparison 4. Epley versus hybrid (Gans) manoeuvre