Quality assessment of the observational studies evaluating the adverse effects of weight management interventions in pregnancy

S Thangaratinam; E Rogozińska; K Jolly; S Glinkowski; W Duda; E Borowiack; T Roseboom; J Tomlinson; J Walczak; R Kunz; BW Mol; A Coomarasamy; KS Khan

Appendix 9Quality assessment of the observational studies evaluating the adverse effects of weight management interventions in pregnancy

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Included under terms of UK Non-commercial Government License.

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NIHR Journals Library, Southampton (UK)

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Thangaratinam S, Rogozińska E, Jolly K, et al. Interventions to Reduce or Prevent Obesity in Pregnant Women: A Systematic Review. Southampton (UK): NIHR Journals Library; 2012 Jul. (Health Technology Assessment, No. 16.31.) Appendix 9, Quality assessment of the observational studies evaluating the adverse effects of weight management interventions in pregnancy.

Cohort studies

Study	Representativeness of the exposed cohort	Selection of the non-exposed cohort	Ascertainment of exposure	Demonstration that outcome of interest was not present at start of study	Comparability of cohorts	Assessment of outcome	Was follow-up long enough for outcomes to occur?	Adequacy of follow-up of cohorts	Overall score (max. 9)
Clapp 1990⁶³	+	−	+	+	−	+	+	−	+++++
Clapp 1990⁶⁴	+	+	+	+	−	+	+	−	++++++
Dale 1982⁶⁷	−	−	+	+	−	+	+	−	++++
de Rooij 2006¹³⁴	+	+	−	−	+	+	−	+	+++++
de Rooij 2007⁶⁸	+	+	−	−	+	+	−	+	+++++
Hatch 1993⁷⁰	+	+	+	−	−	+	−	−	++++
Knudsen 2008⁷³	+	+	−	+	+	+	+	+	++++++++
Lenders 1994⁷⁴	+	+	+	+	+	+	+	+	++++++++
Lenders 1997⁷⁵	+	+	+	+	+	+	+	+	++++++++
Lumey 2009⁷⁶	+	−	−	−	++	+	+	+	++++++
Magann 2002⁷⁷	−	+	+	+	+	−	+	+	++++++
Neugebauer 1999⁸⁰	−	+	−	−	+	+	+	+	+++++
Painter 2008¹³⁵	+	+	−	−	+	−	−	+	++++
Ravelli 1976¹³⁶	+	−	−	−	−	+	+	+	++++
Ravelli 1998¹³⁷	+	+	−	−	+	+	−	+	+++++
Roseboom 2000¹³⁸	+	+	−	−	+	+	+	+	++++++
Roseboom 2000¹³⁹	+	+	−	−	+	+	−	+	+++++
Stanner 1997¹⁴¹	+	−	−	−	+	+	+	+	+++++
Stein 2007⁸⁵	+	−	−	−	++	+	+	+	++++++

: max., maximum.

Case–control studies

Study	Is case definition adequate	Representativeness of the cases	Selection of controls	Definition of controls	Comparability of cases and controls	Ascertainment of exposure	Same Method of ascertainment for cases and controls	Non-response rate	Overall score (max. 9)
Carmichael 2003¹³³	+	+	+	+	+	−	+	+	+++++++
Gregory 1987⁸⁹	+	+	+	−	+	+	+	−	++++++
Schramm 1996¹⁴⁰	+	+	+	−	++	−	+	−	++++++
Vujkovic 2007¹⁴²	+	+	+	−	+	−	+	−	+++++
Yazdy 2010¹⁴³	+	+	+	−	+	−	+	−	+++++

: max., maximum.

Appendix 9Quality assessment of the observational studies evaluating the adverse effects of weight management interventions in pregnancy

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Table

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Cohort studies

Case–control studies