Table 6.

A comparison of mean distances from the IOF-IOM in different populations reported in previous studies.

Study	Distance from IOF-IOM (mm)
Apinhasmit et al., Thailand [5]	9.53 ± 2.23 males, 8.71 ± 1.51 females
Cisneiros de Oliveira et al., Brazil [15]	8.0 males, 8.0 females
Ilayperuma et al., Sri Lanka [13]	10.56 ± 1.74 males, 9.02 ± 1.58 females
Ukoha et al., Nigeria [11]	7.38 ± 2.28
Aziz et al., USA [3]	8.5 ± 2.2 males, 7.8 ± 1.6 mm females
Boopathi et al., India [14]	6.57 ± 1.28
Gupta, India [22]	7.00
Chung et al., Korea [9]	8.6
Elsheikh et al., Egypt [23]	6.37 ± 1.4 right, 6.7 ± 1.6 left
Present study	6.52 ± 2.03 right, 7.30 ± 1.57 left