Table 2.
Quality assessment of the studies
| Author | Year | Instrument used | Score | Reason |
|---|---|---|---|---|
| Banerjee et al.[47] | 1986 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Nandi et al.[41] | 1992 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Ganguly et al.[16] | 1995 | CASP | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Aparajita et al.[36] | 1996 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Chaturvedi et al.[18] | 2003 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Prabhakar and Manoharan[32] | 2005 | CASP | High | Sample size justified; sample is representative; nonresponse categories addressed; risk factors measured correctly; methods used were sufficiently described to repeat them; limitations discussed |
| Sushila et al.[25] | 2005 | CASP | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Hackett et al.[42] | 2007 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Giri et al.[40] | 2007 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Sobhnajan et al.[26] | 2007 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Chowdhury et al.[37] | 2008 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Tripathy et al.[35] | 2010 | CASP | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Mohindra et al.[19] | 2011 | CASP | High | Sample size justified; sample is representative; nonresponse categories addressed; risk factors measured correctly; methods used were sufficiently described to repeat them; limitations discussed |
| Sreeraj et al.[20] | 2012 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Yalsangi[34] | 2012 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Manimundaet al.[23] | 2012 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Renu et al.[28] | 2012 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Renu et al.[46] | 2012 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Singh et al.[24] | 2013 | AXIS | High | Sample size justified; sample is representative; nonresponse categories addressed; risk factors measured correctly; methods used were sufficiently described to repeat them; limitations discussed |
| Chaturvedi et al.[18] | 2013 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Raina et al.[43] | 2013 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Longkumer et al.[23] | 2013 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Raina et al.[44] | 2014 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Nizamie et al.[31] | 2015 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Nimgaonkar and Menon.[33] | 2015 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Ozer[39] | 2015 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Jeffrey G S et al.[37] | 2016 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Raina et al.[45] | 2016 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Lakhan et al.[30] | 2016 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |
| Janakiram et al.[22] | 2016 | AXIS | Poor | Sample size not justified; sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them; limitations not discussed |
| Ali et al.[27] | 2016 | AXIS | Poor | Sample size not justified and is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were insufficiently described; limitations not discussed |
| Maulik et al.[14] | 2017 | AXIS | Moderate | Sample is not representative; nonresponse categories not addressed; risk factors not measured correctly; methods used were not sufficiently described to repeat them |