Table 3

Newcastle–Ottawa scale for cohort studies

Study IDSelectionComparabilityExposureTotal score
Is the case definition adequate?Representativeness of casesSelection of controlsDefinition of controlsComparability of cases and controls on the basis of design or analysisAscertainment of exposureSame method of ascertainment of cases and controlsNon-response rate
Ahmadpour-Kacho_2014_Iran*********9
Auerbach_2013_Israel*********9
Bermick_2016_USA*********9
Chavez-Valdez_2011_USA*********9
Ertl_2006_Hungary*********9
Garg_2003_USA*********9
Hays_2006_USA*********9
Kaempf_2011_USA*********9
Kim_2017_Korea*********9
Lee_2016_USA*********9
Manzoni_2006_Italy*********9
Mohamed_2013_USA*********9
Naseh_2017_Sweden+ ****4
Reyes_2017_Oman*********9
Slidsborg_2018_Denmark*********9
Sutija_2004_USA+ *******7
van der Merwe _2013_South Africa*********9
  • +Abstract only.