Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

72 questions · 82 findings · 19 reviews

No studies found 2 · 2.4%GRADE not reported 21 · 25.6%Very low 16 · 19.5%Low 19 · 23.2%Moderate 13 · 15.9%High 11 · 13.4%

Lower unemployment rate vs Higher unemployment rate (low <=5% / medium >5-10% / high >10%)

Odds of higher caries (DMFT) category · 12-year-old children across European countries (national/regional epidemiological surveys, 2011-2022)

Unemployment rate was not independently associated with DMFT category in the adjusted model (OR 0.99, 95% CI 0.44 to 2.23); not GRADE-rated.

1 finding from 1 review

Populations in countries with a lower Human Development Index (high category, HDI <0.800) vs Populations in countries with a higher Human Development Index (very high, HDI >=0.800)

Caries experience (mean DMFT) · Adults aged 19-60 years

Pooled caries experience (DMFT) was similar in very-high-HDI and high-HDI countries, and meta-regression found no significant association between national HDI and DMFT; ungraded observational evidence with very high heterogeneity.

3 findings from 1 review

Homocysteine‐lowering interventions (high dose) vs homocysteine‐lowering interventions (low dose)

Myocardial infarction · people with or without existing cardiovascular disease, men and women

Homocysteine‐lowering interventions (high dose) showed no clear difference in myocardial infarction compared with homocysteine‐lowering interventions (low dose) (moderate certainty).

1 finding from 1 review

Homocysteine‐lowering interventions (high dose) vs homocysteine‐lowering interventions (low dose)

Stroke · people with or without existing cardiovascular disease, men and women

It is very uncertain whether homocysteine‐lowering interventions (high dose) changes stroke compared with homocysteine‐lowering interventions (low dose) (very low certainty).

1 finding from 1 review

Homocysteine‐lowering interventions (high dose) vs homocysteine‐lowering interventions (low dose)

Death by any cause · people with or without existing cardiovascular disease, men and women

Homocysteine‐lowering interventions (high dose) showed no clear difference in death by any cause compared with homocysteine‐lowering interventions (low dose) (moderate certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Leaving the study early (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes leaving the study early (2‐10 weeks) vs. standard higher dose (>… compared with OTHER DOSES (very low certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Global state: No clinically significant response (as defined by the original studies) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes global state: 1. No clinically significant response in global state… compared with OTHER DOSES (very low certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Global state: 1. No clinically significant response in global state (2‐10 weeks) vs. high dose (> 15‐35 mg/day) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes global state: 1. No clinically significant response in global state… compared with OTHER DOSES (very low certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Adverse effects: 1. Clinically significant extrapyramidal side effects (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes adverse effects: 1. Clinically significant extrapyramidal side… compared with OTHER DOSES (very low certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Adverse effects: 1. Clinically significant extrapyramidal side effects (2‐10 weeks) vs. high dose (> 15‐35 mg/day) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes adverse effects: 1. Clinically significant extrapyramidal side… compared with OTHER DOSES (very low certainty).

1 finding from 1 review

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term

Leaving the study early: Any reasons ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day) · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) showed no clear difference in leaving the study early: Any reasons ‐ when compared with… compared with ANY DOSE ‐ short term (moderate certainty).

1 finding from 1 review

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term

Leaving the study early: any reason ‐ when compared with high dose ( greater than or equal to 10 mg) · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) showed no clear difference in leaving the study early: Any reasons ‐ When compared with high dose… compared with ANY DOSE ‐ short term (moderate certainty).

1 finding from 1 review

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term

Global state: No clinically important improvement ‐ global evaluation ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day) · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) showed no clear difference in global state: No clinically important improvement ‐ global… compared with ANY DOSE ‐ short term (moderate certainty).

1 finding from 1 review

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term

Mental state: No clinically important improvement · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) showed no clear difference in mental state: No clinically important improvement ‐ PANSS ‐ when… compared with ANY DOSE ‐ short term (moderate certainty).

2 findings from 1 review

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Mortality, near term corrected age or discharge · preterm infants

Lower showed no clear difference in mortality, near term corrected age or discharge compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

1 finding from 1 review

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Neurodevelopmental disability · preterm infants

Lower showed no clear difference in neurodevelopmental disability compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

1 finding from 1 review

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Intubation in the delivery room · preterm infants

Lower showed no clear difference in intubation in the delivery room compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

1 finding from 1 review

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Severe (defined as stage 3 or greater) retinopathy of prematurity ‐ not reported · preterm infants

Lower showed no clear difference in severe retinopathy of prematurity (≥ stage 3) compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

1 finding from 1 review