Findings

What do systematic reviews say?

3,801 questions · 4,079 findings · 473 reviews

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No studies found 669 · 16.4%GRADE not reported 852 · 20.9%Very low 738 · 18.1%Low 903 · 22.1%Moderate 716 · 17.6%High 201 · 4.9%

Tai Chi and breathing exercise vs breathing exercises

Lung function · COPD

1 finding from 1 review

Tai Chi for chronic obstructive pulmonary disease (COPD) 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 120 participants
Low

Tai Chi vs usual care

Lung function · COPD

1 finding from 1 review

Tai Chi for chronic obstructive pulmonary disease (COPD) 2016 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 258 participants
Moderate

Rescue high‐frequency jet ventilation vs conventional ventilation

Pulmonary air leak (new) · preterm infants with severe pulmonary dysfunction

Rescue high‐frequency jet ventilation showed no clear difference in pulmonary air leak (new) compared with conventional ventilation (low certainty).

1 finding from 1 review

Rescue high‐frequency jet ventilation versus conventional ventilation for severe pulmonary dysfunction in preterm… 2015 · Cochrane Headline outcomes only
RR 0.76 [0.46, 1.23]
1 study · 144 participants
Low

Intervention not reported

Pulmonary complications · postoperative pulmonary complications in upper abdominal surgery

The intervention showed no clear difference in pulmonary complications (low certainty).

1 finding from 1 review

Incentive spirometry for prevention of postoperative pulmonary complications in upper abdominal surgery 2014 · Cochrane Headline outcomes only
RR 0.83 [0.51, 1.34]
2 studies · 946 participants
Low

Intervention not reported

Weight (mixed population) kg · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 512 participants
Moderate

Intervention not reported

MIP (mixed population) cm H2O · stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 245 participants
Low

Intervention not reported

HRQoL (mixed population) CRQ and SGRQ · stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 130 participants
Low

Intervention not reported

Weight (change from baseline ‐ mixed population) kg · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 511 participants
Moderate

Intervention not reported

Fat‐free mass/fat‐free mass index (change from baseline; mixed population) kg/m2 · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 287 participants
Low

Intervention not reported

Skinfold measures (change from baseline, mixed population) ‐ Triceps skin folds cm · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 125 participants
Low

Intervention not reported

Functional exercise capacity (change from baseline; mixed population) ‐ 6‐minute walk test metres · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 140 participants
Low

Intervention not reported

HRQoL ‐ CRQ subgrouped by domain (change from baseline; mixed population) ‐ dyspnoea · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 123 participants
Low

Intervention not reported

HRQoL ‐ CRQ subgrouped by domain (change from baseline; mixed population) ‐ fatigue · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 123 participants
Low

Intervention not reported

HRQoL ‐ CRQ subgrouped by domain (change from baseline; mixed population) ‐ emotion · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 123 participants
Low

Intervention not reported

HRQoL ‐ CRQ subgrouped by domain (change from baseline; mixed population) ‐ mastery · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 123 participants
Low

Intervention not reported

Fat‐free mass index (mixed population) kg/m2 · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 93 participants
Low

Intervention not reported

Mid‐arm muscle circumference (mixed population) cm · patients with stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 246 participants
Low

Intervention not reported

Skinfold thickness (mixed measures and mixed population) cm · stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
7 studies · 179 participants
Low

Intervention not reported

Functional exercise capacity ‐ 6‐minute walk test (mixed population) metres · stable chronic obstructive pulmonary disease

1 finding from 1 review

Nutritional supplementation for stable chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 142 participants
Low

Conditioning and sealing with an adhesive resin (smear-removing bonding system) vs Conventional calcium hydroxide lining

Maintenance of pulp vitality (freedom from pulpal breakdown) up to 36 months · Healthy adults with asymptomatic posterior permanent teeth with deep caries and a vital (non-exposed) pulp requiring restoration

1 finding from 1 review

Pulp management for caries in adults: maintaining pulp vitality 2007 · Cochrane All outcomes
36 months
Whitworth 2005: 602 teeth randomised; 39 emergency recalls over the 36 months after restoration, with pulp breakdown associated with 16 teeth. The authors concluded that "dentists should be confident that pulps will be…
1 study · 602 participants
GRADE not reported