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. 2021 Oct 22;2021(10):CD000024. doi: 10.1002/14651858.CD000024.pub5

McCarthy 1977.

Study characteristics
Methods C: sealed envelopes (? opaque and sequentially numbered)
DVT assessment blinded
Ex during trial: none
Losses to FU: none
Participants UK
32 participants
Mean age: 78 years
34% male
No CT, 100% LP before entry
Any stroke with no blood in CSF
Less than 48 hours since stroke onset
Interventions Rx: heparin 5000 IU subcutaneous 8‐hourly
Control: no treatment
Duration: 14 days
Outcomes Death but not cause of death
DVT (systematic I‐125 scan)
Notes Ex: BP > 120 diastolic, bleeding risk
FU: 1 month
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Methods used for random sequence generation not described
Allocation concealment (selection bias) Unclear risk No clear description provided, reported only "randomly" assigned
Blinding (performance bias and detection bias)
All outcomes Unclear risk No information given
Blinding of participants and personnel (performance bias)
All outcomes High risk Personnel not blinded to treatment
Blinding of outcome assessment (detection bias)
All outcomes Low risk Results done by a blinded second doctor who did not know the patients
Incomplete outcome data (attrition bias)
All outcomes Unclear risk No detailed number of patients who completed follow‐up reported
Selective reporting (reporting bias) Low risk Mentioned outcomes reported