Table 3. Observations of previous researches conducted on various populations.
| Studies | Sample Type Used | Population | Males | Females | Overall |
|---|---|---|---|---|---|
| Present Study, 2021 | OPG | India | 57.5% | 59.5% | 58.5% |
| Nivia M, 2021 (1) | Lateral Cephalogram | India | 59% | 87% | - |
| Asma Maniyar, 2021 (14) | OPG | India | 44% | 84% | - |
| Altaf 2019 (28) | OPG | India | 80% | 95% | - |
| Leena James 2019 (29) | OPG | India | 63.5% | 64.6% | - |
| Amin 2018 (18) | OPG | Jordan | 78.9% | 85.1% | 82.2% |
| Thais Torralbo 2017 (30) | Mandible | Brazil | 53.34% | 46.66% | - |
| Damera A 2016 (31) | OPG | India | 82.5% | 85% | 83.8% |
| Samatha 2016 (32) | OPG | India | 53% | 60% | - |
| Bibhuti 2016 (33) | Mandible | India | 68.57% | 43.33% | 61% |
| Badran, D. H 2015 (18) | OPG | Jordan | 95.2% | 77.8% | - |
| Shivaprakash 2014 (34) | Mandible | India | 80% | 71% | 76% |
| Indira, AP 2012 (35) | OPG | India | 76% | 76% | 76% |
| Oettle A C 2005 (36) | Mandible | South Africa | 69.6% | 67.8% | - |
| Y. Balci 2004 (37) | Mandible | Turkey | 95.5% | 60.0% | 90.9% |
| Loth & Henneberg 1996 (17) | Mandible | Africa | 99.1% | 98.8% | 99.0% |
| Susan Jones Haun 2000 (38) | Mandible | South Africa | 96.3% | 62.5% | 80.4% |
| Krogman 1940 (39) | Mandible | Iran | 82.4% | 55.0% | 72.2% |