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Table 1 Characteristics of primary research studies

From: Occurrence and prevalence of Cronobacter spp. in plant and animal derived food sources: a systematic review and meta-analysis

Study Sample No of sample No of samples positive References
Plant derived food samples
 Study 1 Herbs 22 1 Li et al. (2014)
 Study 2 Herbs 67 26 Jaradat et al. (2009)
 Study 3 Herbs 23 14 Baumgartner et al. (2009)
 Study 4 Spices 28 1 Kandhai et al. (2010)
 Study 5 Spices 26 7 Baumgartner et al. (2009)
 Study 6 Cereal and cereal products 85 12 Li et al. (2014)
 Study 7 Cereal and cereal products 123 6 Kandhai et al. (2010)
 Study 8 Cereal and cereal products 50 8 Lee et al. (2012)
 Study 9 Fresh vegetable produce 47 2 Kandhai et al. (2010)
 Study 10 Ready to eat food 128 19 Lee et al. (2012)
 Study 11 Fruits 41 3 Lee et al. (2012)
 Study 12 Wheat 13 13 Lou et al. (2014)
 Study 13 Dry noodles 5 5 Lou et al. (2014)
 Study 14 Rice flour 7 2 Lou et al. (2014)
 Study 15 Rice flour 12 4 Cetinkaya et al. (2013)
 Study 16 Confessionary 42 3 Baumgartner et al. (2009)
Animal derived food samples
 Study 17 Powdered infant formula 32 1 Hochel et al. (2012)
 Study 18 Powdered infant formula 3 3 Terragno et al. (2009)
 Study 19 Powdered infant formula 76 1 Jaradat et al. (2009)
 Study 20 Powdered infant formula 399 49 Pan et al. (2014)
 Study 21 Powdered infant formula 140 20 El-Gamal et al. (2013)
 Study 22 Follow up formula 5 1 Kandhai et al. (2010)
 Study 23 Follow up formula 91 3 Chap et al. (2009)
 Study 24 Powdered instant products 182 1 Kandhai et al. (2010)
 Study 25 Milk powder 175 7 Kandhai et al. (2010)
 Study 26 Pork 92 2 Wang et al. (2012)
 Study 27 Minced meat 222 7 Kandhai et al. (2010)
 Study 28 Powdered infant formula 395 8 Kandhai et al. (2010)