Table 2

GRADE evidence profile for PICO 3

Certainty assessment№ of patientsEffectCertaintyImportance
Study designRisk of biasInconsistencyIndirectnessImprecisionOtherEVT plus BMTBMT aloneRelative (95% CI)Absolute (95% CI)
mRS 0–3 at 90 days
2Randomized trialsSerious*Not seriousSerious†‡Not seriousNoneNANAaRR: 1.90 (1.41 to 2.57)NA⨁⨁◯◯LowCRITICAL
5Prospective registriesSerious§Serious¶Serious†Serious**NoneNANARR: 0.91
(0.50 to 1.67)
NA⨁◯◯◯Very lowCRITICAL
mRS 0–2 at 90 days
1Randomized trialSerious*NA††Serious‡Not seriousNone43/11015/107aRR 2.75 (1.65 to 4.56)25 more per 100 (from 14 to 36 more)⨁◯◯◯Very lowCRITICAL
1Prospective registryModerate§NA††Not seriousSerious‡‡None36/1541/46RR 10.75
(1.52 to 76.31)
21 more per 100 (from 13 to 29 more)⨁◯◯◯Very lowCRITICAL
Shift (ordinal) mRS at 90 days
1Randomized trialSerious* NA†† Serious Not seriousNoneNA/110NA/107acOR 2.64 (1.54 to 4.50)NA⨁◯◯◯Very lowCRITICAL
1Prospective registryModerate§ NA†† Not seriousSerious‡‡ NoneNANAcOR 4.1 (1.8 to 9.5)NA⨁◯◯◯Very lowCRITICAL
Mortality at 90 days
1Randomized trialSerious* NA†† Serious Serious** None34/11045/107aRR 0.75 (0.54 to 1.04)Eleven fewer per 100 (from 24 fewer to two more)⨁◯◯◯Very lowCRITICAL
1Prospective registryModerate§ NA†† Not seriousNot seriousNone72/15434/46RR 0.63 (0.50 to 0.80)27 fewer per 100 (42 to 12 fewer)⨁◯◯◯Very lowCRITICAL
Symptomatic Intracranial Hemorrhage (sICH)
1Randomized trialSerious* NA†† Serious Very serious**‡‡ None6/1021/88RR 5.18 (0.64 to 42.18)Five more per 100 (0 to 10 more)⨁◯◯◯Very lowCRITICAL
mTICI
1Randomized trialSerious* NA†† Serious NANone89/101NANANA⨁◯◯◯Very lowIMPORTANT
  • *Serious risk of bias arising from the deviations from intended intervention in all RCTs, high risk of performance bias. Some concerns in other domains.

  • †Raw data was not available in one study; generic inverse variance meta-analysis of the reported RRs in the studies was performed.

  • ‡Enrolled patients had mostly severe/very severe symptoms. Patients with mild-to-moderate symptoms were missing or underrepresented.

  • §Moderate risk of confounding and selection bias.

  • ¶Presence of heterogeneity.

  • **Inconclusive confidence interval.

  • ††Only one study included. Evaluation of inconsistency is not applicable (NA).

  • ‡‡Wide confidence interval.

  • aRR, give details; BMT, give details; CI, confidence interval; EVT, give details; mRS, modified Rankin Scale; mTICI, modified Thrombolysis in Cerebral Ischemia; NA, not applicable; RCT, randomized controlled trial; RR, give details.