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Exact(15)
Sequential organ failure assessment score did not differ between index and reference groups (4 versus 5).
This will bias the results when selective follow-up rates differ between index and reference group.
No: if time period between index and reference standards is longer than one week.
Primary endpoint was the difference in anti-Xa activity between index and reference group.
Mean arterial pressure was comparable between index and reference groups (91 versus 95 mmHg) and within the normal range.
The main risk of bias arose from inadequate blinding between index and reference tests (n=7; figures 2 and 3).
Similar(45)
Mean arterial pressure was comparable between the index and reference group (87 vs 90 mmHg) and within the normal range.
The majority of studies (n = 14, 64 %) did not report on the interval between the index and reference tests.
Another potential limitation was the time, on average almost nine months that elapsed between the index and reference test.
Sequential organ failure assessment score did not differ between the index and reference groups (4 vs 5).
Notation: From the jth centre in the ith study we extracted the cross-tabulation between the index and reference tests TPij, FPij, TNij, FNij.
More suggestions(15)
between index and source
between restoration and reference
between index and study
between machine and reference
between map and reference
between index and ringer
between survey and reference
between index and contact
between sense and reference
between test and reference
between index and outcome
between index and recurrence
between examinee and reference
between index and race
between probing and reference
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