Year | Authors | Study type | Sample size | Country | City/district | State/Province | Prevalence (%) |
---|---|---|---|---|---|---|---|
1965 | Pindborg J. J. et al. [9] | Observational | 10,000 | India | Mumbai | Maharashtra | 0.50 |
1965 | Pindborg J. J. et al. [10] | Cross sectional | 10,000 | India | Lucknow | Uttar Pradesh | 4.1 |
1966 | Pindborg J. J. et al. [11] | Observational | 10,000 | India | Bengaluru | Karnataka | 0.18 |
1966 | Zachariah et al. [12] | Observational | 5000 | India | Thiruvananthapuram | Kerala | 1.22 |
1968 | Pindborg J. J. et al. [13] | Observational | 50,915 | India | Srikakulam | Andra Pradesh | 0.04 |
Darbhanga | Bihar | 0.07 | |||||
Bhavnagar | Gujarat | 0.16 | |||||
Ernakulum | Kerala | 0.36 | |||||
1970 | Wahi et al. [14] | Observational | India | Mainpuri | Uttar Pradesh | 0.59 | |
1972 | Mehta F. S. et al. [15] | Survey | 101,761 | India | Pune | Maharashtra | 0.03 |
1982 | Lay K. M. et al. [16] | Cross sectional | 6000 | Myanmar | Bilugyun | Mon | 0.1 |
1988 | Seedat H. A. et al. [17] | Cross sectional | 2400 | South Africa | Durban | KwaZulu-Natal | 3.4 |
1997 | Tang J.G. et al. [18] | Cross sectional | 11,046 | China | Xiangtan | Hunan | 3.30 |
2006 | Patil P. B. et al. [19] | Cross sectional | 2400 | India | Dharwad | Karnataka | 7.8 |
2007 | Hazarey V. K. et al. [20] | Cross sectional | 1000 | India | Nagpur | Maharashtra | 6.42 |
2008 | Mathew A. L. et al. [21] | Observational | 1190 | India | Manipal | Karnataka | 2.01 |
2008 | Mehrotra R. et al. [22] | Retrospective | 1151 | India | Allahabad | Uttar Pradesh | 17.02 |
2012 | Sharma R. et al. [23] | Cross sectional survey | 6800 | India | Jaipur | Rajasthan | 3.39 |
2012 | Agarwal A. et al. [24] | Observational | 750 | India | Dehradun | Uttarakhand | 5.4 |
2013 | Bhatnagar P. et al. [25] | Survey | 8866 | India | Modinagar | Uttar Pradesh | 1.97 |
2014 | Burungale S. U. et al. [26] | Cross sectional | 800 | India | Jaitala, Nagpur | Maharashtra | 2.62 |
2014 | Nigam N. K. et al. [27] | Observational | 1000 | India | Moradabad | Uttar Pradesh | 6.3 |
2015 | Patil S. et al. [28] | Observational | 5100 | India | Jodhpur | Rajasthan | 30 |
2016 | Singh P. et al. [29] | Cross sectional survey | 132 | India | Nagpur | Maharashtra | 2.86 |
2018 | Tyagi V. N. et al. [30] | Cross sectional | 1167 | India | Nashik | Maharashtra | 3.51 |
2018 | Yang S. F. et al. [31] | Cross sectional | 23,373,51 | Republic of China | – | Taiwan | 16.2 |
2019 | More C. B, et al. [32] | Cross sectional | 13,874 | India | Vadodara | Gujarat | 7.21 |