Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,191 questions · 2,354 findings · 362 reviews

No studies found 323 · 13.7%GRADE not reported 382 · 16.2%Very low 555 · 23.6%Low 597 · 25.4%Moderate 345 · 14.7%High 152 · 6.5%

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).

4 findings from 1 review
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STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term

Adverse effects: 6. Movement disorders ‐ specific symptoms ‐ dystonia ‐ versus low dose (greater than or equal to 2‐<4 mg/day) · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) probably leads to higher adverse effects: 6. Movement disorders ‐ specific symptoms ‐… 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

Adverse effects: 6. Movement disorders ‐ specific symptoms ‐ EPS: unspecified ‐ versus low dose (greater than or equal to 2‐<4 mg/day) · patients with schizophrenia

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) probably leads to higher adverse effects: 6. Movement disorders ‐ specific symptoms ‐ EPS:… compared with ANY DOSE ‐ short term (moderate certainty).

1 finding from 1 review

Fluoride toothpaste less than 1000 ppm (lower concentration) vs Fluoride toothpaste 1000 ppm or more (higher concentration)

Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years

It is very uncertain whether fluoride toothpaste less than 1000 ppm (lower concentration) changes fluorosis (percentage prevalence in permanent teeth) compared with fluoride toothpaste 1000 ppm or more (higher concentration) (very low certainty).

2 findings 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

Populations with a lower proportion of university-educated people (<33.78% with university level) vs Populations with a higher proportion of university-educated people (>=33.78% with university level)

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

The proportion of university-educated people was not associated with caries experience (DMFT); pooled DMFT was similar across subgroups and the meta-regression was non-significant; ungraded observational evidence.

5 findings from 1 review
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Sociodemographic and behavioural factors (older age, lower education, lower income, poor oral hygiene/brushing, smoking, disadvantaged/slum residence, sex) vs Referent groups (younger, higher education/income, better oral hygiene, non-slum residence)

Determinants of oral diseases · Adult residents of slums and non-slum urban settings of LMICs

Age, education, income, oral-hygiene behaviour, dental-visit pattern and slum/disadvantaged residence are associated with oral disease; gender effects are disease-specific; ungraded.

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Gastrointestinal bleeding · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids showed no clear difference in gastrointestinal (GI) bleeding (as defined by study authors,… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Summary of findings table ‐ Metformin + levonorgestrel (intrauterine system) vs levonorgestrel intrauterine system

Adverse effects during treatment ‐ heaviness in lower abdomen · endometrial hyperplasia

It is very uncertain whether summary of findings table ‐ Metformin + levonorgestrel (intrauterine… changes adverse effects during treatment ‐ heaviness in lower abdomen compared with levonorgestrel intrauterine system (very low certainty).

1 finding from 1 review

Familiar odour (breast milk smell) vs usual care

Pain (PIPP) · neonates with mechanical ventilation

Familiar odour (breast milk smell) showed no clear difference in PIPP during endotracheal suctioning Range of scale 0 to 21. Lower… compared with standard care (low certainty).

1 finding from 1 review

Facilitated tucking / four‐handed care / gentle human touch vs usual care

Pain (PIPP) · neonates with mechanical ventilation

Facilitated tucking / four‐handed care / gentle human touch showed no clear difference in PIPP during endotracheal suctioning Range of scale 0 to 21. Lower… compared with standard care (moderate certainty).

1 finding from 1 review