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Oriental journal of medicine and natural sciencesBog'liq 3. Yakubova,Dusmurodova Risk of bias in studies
Among the included studies, three (1, 2, and 5) were randomized clinical trials,
while two (3 and 4) were retrospective. The overall risk of bias, evaluated using
RoB 2, was deemed low for studies 1 and 2, with some concern identified for
study 5. Assessment with ROBINS-I revealed a serious and moderate overall risk
of bias for studies 3 and 4, respectively (Tables 2 and 3).
Studies
included in
the review
D 1
D 2
D 3
D 4
D 5
Overall
Study 1
+
+
+
+
+
+
Study 2
+
+
+
+
+
+
Study 3
+
-
+
+
+
-
Judgment:
+ low risk
X high risk
− some concerns
Domains:
D1: bias arising from the randomization process
D2: bias due to deviations from intended intervention
D3: bias due to missing outcome data
D4: bias in measurement of the outcome
D5: bias in selection of the reported result
Studies
included
in the
review
D 1
D 2
D 3
D 4
D 5
D 6
D 7
Overall
Study 3
X
-
-
-
X
-
-
X
Study 4
-
-
-
+
+
+
+
-
Judgment:
! critical
X serious
− moderate
+ low
? no information
Domains:
D1: bias due to confounding
D2: bias due to selection of participants
D3: bias in classification of interventions
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Volume 1 Issue 1
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January 2024
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ORIENTAL JOURNAL OF MEDICINE AND NATURAL SCIENCES
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