Authors who write a review within the scope of Cochrane Childhood Cancer are obliged to adhere to the methodological standards as set out in the Cochrane Handbook and to the CCG standards. You will find these standards in the CCG module* and below, per subject, together with as a selection of easy to read (open access) publications on that specific subject (* please contact the Editorial Base if access is denied).
Search strategy & selection of studies
- CCG standards on search strategies
- Online learning module 'Searching for studies for a Cochrane intervention review'
- Development of a search strategy. Lundh A, Kremer LCM, Leclercq E. Evid.-Based Child Health 2007; 2 (2) 937-939.
Assessment of risk of bias
- CCG standards on risk of bias
- Online learning module 'Risk of bias'
- van Dalen EC, Kremer LCM, Moyer VA. Quality of studies included in a systematic review and associated risk of bias - garbage in, garbage out. Evid.-Based Child Health 2007; 2(4):1321-1324.
- Altman DG, Bland JM. Treatment allocation in controlled trials: why randomise? BMJ 1999;318:1209.
- Altman DG, Bland JM. How to randomise. BMJ 1999;319:703-4.
- Day SJ and Altman DG. Blinding in clinical trials and other studies. BMJ 2000;321:504.
- Altman DG, Schulz KF. Concealing treatment allocation in randomised trials. BMJ 2001;323:446-447.
- CCG standards on data collection
- Online learning module 'Collecting data'
- CCG standards on data analysis
- Online learning modules Types of data, Heterogeneity, Analysing and presenting data
- van Dalen EC, Tierney JF, Kremer LCM. Time-to-event data Evid.-Based Child Health 2007; 2(3):1089-1090.
- Altman DG, Bland JM. Time to event (survival) data. BMJ 1998;317:468-469.
- Bland JM, Altman DG. Survival probabilities (the Kaplan-Meier method). BMJ 1998;317:1572.
- Kremer LCM, van Dalen EC, Vandermeer B. Meta-analysis and heterogeneity Evid.-Based Child Health 2006; 1(3):932-935.
- Altman DG, Matthews JNS. Interaction 1: Heterogeneity of effects. BMJ 1996;313:486.
- Matthews JNS, Altman DG. Interaction 2: compare effect sizes not P values. BMJ 1996;313:808.
- Matthews JNS, Altman DG. Interaction 3: How to examine heterogeneity. BMJ 1996;313: 862.
Interpreting & reporting of reviews
- CCG standards on reporting
- Online module 'Interpreting results and drawing conclusions'
- Slidecasts and videos on GRADE and Summary of Findings tables
- Langendam MW, Kuijpers T, de Beer H, Kremer LCM. An introduction to the GRADE approach; rating the quality of evidence for an intervention Evid.-Based Child Health 2010;5(2):537-40
- Kremer LCM, Moyer V. Tips and tricks for understanding and using SR results. Evid.-Based Child Health 2006; 1(1):356-358.
- van der Lee JH. Outcomes - don't be misled by results in which you are not interested Evid.-Based Child Health 2008;3(4):1153-1155.
- Altman DG, Bland JM. Absence of evidence is not evidence of absence. BMJ 1995;311:485.
- van Dalen EC, Kremer LCM. Subgroup analyses. Evid.-Based Child Health 2009; 4(2):1140-1141
- Kremer LCM, van Dalen EC. P-values and confidence Intervals Evid.-Based Child Health 2008;3(3): 904-6. Erratum in: Evid.-Based Child Health 2008;3(4): 1156.