Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

901 questions · 1,073 findings · 138 reviews

No studies found 166 · 15.5%GRADE not reported 310 · 28.9%Very low 213 · 19.9%Low 227 · 21.2%Moderate 132 · 12.3%High 25 · 2.3%

Anticipated normal responders: higher vs lower dose of FSH

IU vs 100 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in IU vs 100 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Anticipated normal responders: higher vs lower dose of FSH

225/200 IU vs 150 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in 225/200 IU vs 150 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Anticipated normal responders: higher vs lower dose of FSH

IU vs 225 IU · women undergoing IVF/ICSI who are anticipated to have a normal response to stimulation based on at least one ORT measure

Anticipated normal responders: higher showed no clear difference in IU vs 225 IU compared with lower dose of FSH (low certainty).

1 finding from 1 review

Monthly pulsed high‐dose dexamethasone vs prednisolone

≥ 1 point improvement on INCAT disability score at 12 months · patients with chronic inflammatory demyelinating polyradiculoneuropathy

Monthly pulsed high‐dose dexamethasone may leads to higher ≥ 1 point improvement on INCAT disability score at 12 months compared with oral prednisolone (low certainty).

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Alzheimer’s disease · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.08 (95% CI 0.01 to 0.63) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Aggressive prostate cancer · Participants in observational studies

The meta-analysis of observational studies reported a OR of 0.88 (95% CI 0.68 to 1.15) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Tuberculosis · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.29 (95% CI 0.19 to 0.46) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Fracture · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.31 (95% CI 0.23 to 0.42) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review