Findings

What do systematic reviews say?

28 questions · 28 findings · 1 reviews

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No studies found 6 · 21.4%GRADE not reported 0 · 0%Very low 9 · 32.1%Low 6 · 21.4%Moderate 7 · 25%High 0 · 0%

Hydroxyurea vs no hydroxyurea

Pain alteration · people with sickle cell disease

The review found no eligible studies for this question.

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hydroxyurea vs no hydroxyurea

Life‐threatening illness · people with sickle cell disease

The review found no eligible studies for this question.

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hydroxyurea vs no hydroxyurea

Death during the study · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 44 participants
Very low

Hydroxyurea vs no hydroxyurea

Measures of HbF · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 44 participants
Very low

Hydroxyurea vs no hydroxyurea

Measures of ANC · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 44 participants
Very low

Hydroxyurea vs no hydroxyurea

Quality of life · people with sickle cell disease

The review found no eligible studies for this question.

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hydroxyurea vs no hydroxyurea

Adverse events or toxicity · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 44 participants
Very low

Hydroxyurea vs placebo

Pain alterationa · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 784 participants
Moderate

Hydroxyurea vs observation

Pain alteration · adults and children with sickle cell disease and an increased risk of stroke

The review found no eligible studies for this question.

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hydroxyurea vs observation

Life‐threatening illness · adults and children with sickle cell disease and an increased risk of stroke

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 22 participants
Very low

Hydroxyurea vs observation

Death during the study · adults and children with sickle cell disease and an increased risk of stroke

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 22 participants
Very low

Hydroxyurea vs observation

Measures of HbF · adults and children with sickle cell disease and an increased risk of stroke

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 22 participants
Very low

Hydroxyurea vs observation

Measures of ANC · adults and children with sickle cell disease and an increased risk of stroke

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 22 participants
Very low

Hydroxyurea vs placebo

Life‐threatening illness · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 759 participants
Moderate

Hydroxyurea vs observation

Quality of life · adults and children with sickle cell disease and an increased risk of stroke

The review found no eligible studies for this question.

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hydroxyurea vs observation

Adverse events or toxicity: differences in rates of specific adverse events · adults and children with sickle cell disease and an increased risk of stroke

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 22 participants
Very low

Hydroxyurea vs placebo

All‐cause mortality · people with sickle cell disease

Summary of findings ‐ Hydroxyurea showed no clear difference in death during the study (all deaths) compared with placebo (moderate certainty).

1 finding from 1 review · compare the 2 reviews

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
RR 0.65 [0.19, 2.27]
5 studies · 784 participants
Moderate

Hydroxyurea vs placebo

Measures of HbF · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 784 participants
Low

Hydroxyurea vs placebo

Measures of ANC · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 724 participants
Moderate

Hydroxyurea vs placebo

Health status and quality of life · people with sickle cell disease

1 finding from 1 review

Hydroxyurea (hydroxycarbamide) for sickle cell disease 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 277 participants
Low