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Search review questions
Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.
2,325 questions in 216 reviews · Airways
current versionsNo studies 249 · 10.7%Ungraded 107 · 4.6%Very low 276 · 11.9%Low 751 · 32.3%Moderate 718 · 30.9%High 224 · 9.6%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Vapour ablation vs control Cost effectiveness · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | no estimate extracted | NR | No studies |
AeriSeal vs control Meters change from baseline in 6MWD · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | no estimate extracted | 1 study · 34 participants | Low |
AeriSeal vs control Adverse events at end of · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | OR 3.71 [1.34, 10.24] | 1 study · 95 participants | Moderate |
AeriSeal vs control Cost effectiveness end of · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | no estimate extracted | NR | No studies |
Airway bypass stents vs control % Change from baseline in FEV1 · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | no estimate extracted | 1 study · 350 participants | High |
Airway bypass stents vs control Mortality at end of · Participants suffering from chronic obstructive pulmonary disease Bronchoscopic lung volume reduction procedures for chronic obstructive pulmonary disease (2017) · Cochrane | OR 0.76 [0.21, 2.77] | 1 study · 350 participants | Moderate |
Adherence education vs controls % Adherence WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 5 studies · 280 participants | Low |
Electronic trackers or reminders (± feedback) vs controls Asthma control (ACQ) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 2 studies · 109 participants | Low |
Electronic trackers or reminders (± feedback) vs controls Asthma control (ACT) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 4 studies · 596 participants | Low |
Electronic trackers or reminders (± feedback) vs controls Unscheduled healthcare visits to a healthcare provider (ED) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 1.14 [0.88, 1.47] | 2 studies · 2918 participants | Moderate |
Electronic trackers or reminders (± feedback) vs controls Absenteeism (people with at least 1 absence) · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 1.42 [0.82, 2.47] | 1 study · 220 participants | Low |
Electronic trackers or reminders (± feedback) vs controls Quality of life (AQLQ) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 4 studies · 369 participants | Moderate |
Simplified vs usual regimens % Adherence (objective measures) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 3 studies · 1310 participants | Moderate |
Simplified vs usual regimens Exacerbations requiring OCS People with 1 or more · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 2.33 [0.17, 32.58] | 1 study · 16 participants | Low |
Simplified vs usual regimens Asthma control (ACQ) · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 1 study · 103 participants | Moderate |
Simplified vs usual regimens Unscheduled visits · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 1.17 [0.72, 1.9] | 1 study · 1037 participants | Low |
Simplified vs usual regimens Absence from work/school · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 0.93 [0.37, 2.3] | 1 study · 1037 participants | Low |
Adherence education vs controls Exacerbations requiring OCS (people with 1 or more) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 1.82 [0.99, 3.36] | 3 studies · 349 participants | Low |
Simplified vs usual regimens Change in quality of life (ITG‐ASF) · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 1 study · 1037 participants | Low |
Simplified vs usual regimens All adverse events · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 0.76 [0.56, 1.04] | 1 study · 1233 participants | Low |
School‐based ICS therapy vs home therapy Unscheduled visits 1 or more hospitalisations for any cause WMD of · children with asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 0.58 [0.16, 2.05] | 2 studies · 279 participants | Low |
School‐based ICS therapy vs home therapy Quality of life (PACQLQ) · children with asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 2 studies · 279 participants | Moderate |
School‐based ICS therapy vs home therapy Adverse events · children with asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 1 study · 99 participants | Ungraded |
Adherence education vs controls Asthma control (ACQ) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 4 studies · 455 participants | Moderate |
Adherence education vs controls Asthma control (ACT) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 3 studies · 333 participants | Moderate |
Adherence education vs controls Unsheduled visits to a healthcare provider (people with 1 or more) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 0.48 [0.19, 1.19] | 4 studies · 688 participants | Very low |
Adherence education vs controls Absenteeism WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 2 studies · 109 participants | Ungraded |
Adherence education vs controls Quality of life (AQLQ) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 6 studies · 734 participants | Moderate |
Electronic trackers or reminders (± feedback) vs controls % Adherence WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | no estimate extracted | 6 studies · 555 participants | Moderate |
Electronic trackers or reminders (± feedback) vs controls Exacerbations requiring OCS (people with at least 1) WMD of · asthma Interventions to improve adherence to inhaled steroids for asthma (2017) · Cochrane | OR 0.72 [0.37, 1.39] | 4 studies · 3063 participants | Very low |
Intervention NR Visits to ED/hospital Over previous 12 months, measured at 1 and 2 yearsa · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 1 study · 472 participants | Ungraded |
Intervention NR Mortality · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 0 studies · 0 participants | Ungraded |
Intervention NR Asthma control Quality of life (PAQLQ) · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 2 studies · 1005 participants | Low |
Intervention NR Asthma control Narrative 1 year and 2 years · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 1 study · 472 participants | Ungraded |
Intervention NR Adherence to asthma policies 6 months to 1 year · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 2 studies · 57 participants | Low |
Intervention NR Absenteeism related to asthma Narrative · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 1 study · 472 participants | Ungraded |
Intervention NR Staff preparedness ‐ asthma knowledge NAKQ 0 to 31 scale; higher is better. 1 to 8 months · school staff Asthma education for school staff (2017) · Cochrane | no estimate extracted | 3 studies · 640 participants | Low |
Enhanced education vs control versus usual care Correct inhaler technique · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 5 [1.83, 13.65] | 3 studies · 258 participants | Moderate |
Multimedia training vs control versus usual care Asthma control (ACT) · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | 1 study · 91 participants | Low |
Multimedia training vs control versus usual care Other outcomes · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | NR | No studies |
Feedback device vs control versus usual care Correct inhaler technique 4‐Week · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 4.8 [1.87, 12.33] | 1 study · 97 participants | Low |
Feedback device vs control versus usual care Inhaler technique (PIF) · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 18.26 [2.22, 150.13] | 1 study · 71 participants | Low |
Feedback device vs control versus usual care Asthma control (ACQ) · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | 1 study · 97 participants | Low |
Feedback device vs control versus usual care Quality of life · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | 2 studies · 100 participants | Low |
Feedback device vs control versus usual care Quality of life (responders) · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 5.29 [1.76, 15.89] | 1 study · 71 participants | Moderate |
Feedback device vs control versus usual care Other outcomes · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | NR | No studies |
Enhanced education vs control versus usual care Asthma control score 4 to 26 weeks · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | 2 studies · 247 participants | Very low |
Enhanced education vs control versus usual care Asthma control responders 8 to 12 weeks · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 3.18 [1.47, 6.88] | 2 studies · 134 participants | Low |
Enhanced education vs control versus usual care Exacerbations requiring at least OCS 26 weeks · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | OR 1.32 [0.49, 3.55] | 1 study · 158 participants | Low |
Enhanced education vs control versus usual care Quality of life 26 weeks · adults and children with asthma Interventions to improve inhaler technique for people with asthma (2017) · Cochrane | no estimate extracted | 2 studies · 247 participants | Low |