Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,922 questions · 3,118 findings · 513 reviews

No studies found 574 · 18.4%GRADE not reported 372 · 11.9%Very low 723 · 23.2%Low 854 · 27.4%Moderate 489 · 15.7%High 106 · 3.4%

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs Supra-gingival scaling

Percentage of bleeding on probing (BOP) · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Intensive periodontal treatment (subgingival SRP with or without… led to lower bleeding on probing (BOP) compared with supra-gingival scaling; GRADE not reported.

2 findings from 1 review

Antihypertensive drug therapy vs placebo

Number of cases of dementia Range of · participants without prior cerebrovascular disease for prevention of cognitive impairment and dementia

It is very uncertain whether antihypertensive therapy changes number of cases of dementia Range of compared with placebo (very low certainty).

1 finding from 1 review

Xylitol (low-intensity sweetener/sugar alcohol) in food products (chewing gum, milk, candy, or tablets) vs Sorbitol (low-intensity sweetener)

Change in Mutans streptococci (MS) count in saliva · healthy people

Xylitol and sorbitol did not differ significantly for Mutans streptococci in saliva (SMD -0.16, 95% CI -0.44 to 0.12; 2 trials, P=.25); not GRADE-rated.

1 finding from 1 review

Xylitol (low-intensity sweetener/sugar alcohol) in food products (chewing gum, milk, candy, or tablets) vs Sorbitol (low-intensity sweetener)

Change in Mutans streptococci (MS) count in dental plaque · healthy people

Xylitol reduced Mutans streptococci in dental plaque more than sorbitol (SMD -0.45, 95% CI -0.69 to -0.21; 4 trials, I2=7%); not GRADE-rated.

1 finding from 1 review

INTENSIVE CASE MANAGEMENT vs usual care

Adverse event: 1b. Death ‐ suicide ‐ by long term · people with severe mental disorders

Intensive Case Management showed no clear difference in adverse event: 1b. Death ‐ suicide ‐ by long term compared with standard care (low certainty).

1 finding from 1 review

INTENSIVE CASE MANAGEMENT vs usual care

Social functioning: 2. Employment status (various measurements) ‐ by long term ‐ not employed at the end of the trial · people with severe mental disorders

It is very uncertain whether intensive Case Management changes social functioning: 2. Employment status (various measurements) ‐ by… compared with standard care (very low certainty).

1 finding from 1 review

Intensive glycaemic control vs conventional glucose control

Severe hypoglycaemia, baseline HbA1c ≥9.0 · persons with type 1 diabetes mellitus

Intensive glucose control showed no clear difference in severe hypoglycaemia, baseline HbA1c ≥9.0 compared with conventional glucose control (low certainty).

1 finding from 1 review