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Table 2 Qualitative assessment

From: What are the non-food impacts of GM crop cultivation on farmers’ health?

Coding 1 2 3 4 5 6 7 8 9
ID Huang et al. (2005) Huang et al. (2002) Kouser and Qaim (2011) Kouser and Qaim (2013) Morse and Bennett (2008) Dev and Rao (2007) Bennett et al. (2006) Wang et al. (2008) Liu (2008)
QA: Did the study include more than one study area (country/region within a country)? Yes Yes Yes Yes No Yes No No Yes
QA: Were the farmers randomly selected? Yes Yes Yes Yes Yes Yes No Yes Yes
QA: Did the study include data from more than 1 year? Yes Yes Yes No Yes No Yes Yes No
QA: Did the sources of data rely on written records? No No No No No No Yes No No
QA: Were there any measures in place to deal with attrition? No Yes Yes N/A N/A N/A Yes No N/A
QA: Did the study test differences between GM adopters and non-GM adopters? Yes No Yes Yes No Yes Yes No No
QA: Did the study test if the farmers’ use of pesticides protective measures was related to the pesticides-related poisonings? No No No No N/A No Yes N/A No
QA: Did the study include confounding variables in the calculation of farmers’ income? N/A N/A N/A N/A No N/A N/A No N/A