Table 4

GRADE evidence profile for PICO 7

Certainty assessment№ of patientsEffectCertaintyImportance
№ of studiesStudy designRisk of biasInconsistencyIndirectnessImprecisionOther considerationsDirect EVTIVT+Relative (95% CI)Absolute (95% CI)
mRS 0–3 at 90 days observational
2Non-randomized studiesSerious* Not seriousNot seriousSerious None154/436 (35.3%)81/196 (41.3%)OR 0.75 (0.50 to 1.12)68 fewer per 1000 (from 153 fewer to 28 more)⨁⨁◯◯LowCRITICAL
mRS 0–2 at 90 days observational
5Non-randomized studiesSerious Not seriousNot seriousSerious None272/682 (39.9%)161/360 (44.7%)OR 0.70 (0.48 to 1.05)86 fewer per 1000 (from 168 fewer to 12 more)⨁⨁◯◯LowCRITICAL
shift mRS 90 days observational
3Non-randomized studiesSerious* Not seriousNot seriousSerious NoneOR 0.58 (0.37 to 0.90)One fewer per 1000 (from 1 fewer to 0 fewer)⨁⨁◯◯LowCRITICAL
TICI 2B/3 90 days observational
4Non-randomized studiesSerious* Not seriousNot seriousSerious None604/754 (80.1%)308/371 (83.0%)OR 0.89 (0.40 to 1.96)17 fewer per 1000 (from 169 fewer to 75 more)⨁⨁◯◯LowCRITICAL
sICH observational
4Non-randomized studiesSerious* Not seriousNot seriousSerious None41/741 (5.5%)18/363 (5.0%)OR 1.20 (0.35 to 4.07)Nine more per 1000 (from 32 fewer to 126 more)⨁⨁◯◯LowCRITICAL
  • *Serious risk of bias due to serious confounding reported in both studies implemented for this outcome according to ROBINS-I tool for observational studies.

  • † Serious imprecision due to low optimal information size. The total number of patients included is less than the number of patients generated by a conventional size sample calculation for a single adequately powered clinical trial.

  • ‡Serious risk of bias due to serious confounding reported in studies implemented for this outcome according to ROBINS-I tool for observational studies.

  • CI, confidence interval; EVT, give details; mRS, modified Rankin Scale; OR, give details; OR, odds ratio; sICH, give details; TICI, give details.