Ondansetron

Postpartum hemorrhage

R analysis
id Study   Lib. in paper Exposition period    Study type 
 Control type 
 
Tags OR 95%CI x1/n1 x0/n0 no cases no exposed ROB Ref.
S2775
R4581		 Colvin, 2013 Postpartum haemorrhage ≥ 500 mls during pregnancy (anytime or not specified) retrospective cohort (claims database) unexposed (general population or NOS) Adjustment: Yes 1.20 [0.70;2.00] 18/251   8,844/96,447 8,862 251
ref
Total 1 studies 1.20 [0.71;2.03] 8,862 251
x1: number of endpoints among exposed, n1: number of exposed; x0: number of endpoints among non exposed, n0: number of non exposed; C: calculated odds ratio from numbers of events and effectives

Forest plot

StudyTE95% CIn casesn exposedweightROBABCDEF Colvin, 2013Colvin, 2013 1.20[0.70; 2.00]8,8622510%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA0.55.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 1.20[0.71; 2.03]8,862251 -NAColvin, 2013 1 case control studiescase control studies 0 Type of controls unexposed (disease free or unspecified)unexposed (disease free or unspecified) 1.20[0.71; 2.03]8,862251 -NAColvin, 2013 1 Tags Adjustment   - Yes  - Yes 1.20[0.71; 2.03]8,862251 -NAColvin, 2013 1 All studiesAll studies 1.20[0.71; 2.03]8,862251 -NAColvin, 2013 10.55.01.0

Publication bias and p-hacking diagnosis

funnel plot

Funnel plot not drawn. Less than 3 points.

Asymetry test p-value = NaN (by Egger's regression)

not enought points

p values plot

Funnel plot not drawn. Less than 3 points.

Sub-groups analysis using all included studies

excluded

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 1.20[0.71; 2.03]8,862251 -NAColvin, 2013 10.510.01.0