Table 5:

Relationship between maximum mouth opening and age across ethnicity

Ethnicity	Age	Mean ± SD	p-value	t-test
Hausa	<40years	52.15 ± 8.27
	≥40years	49.44 ± 7.81	0.61	0.21
Igbo	<40years	47.16 ± 8.62
	≥40years	43.81 ± 2.57	0.00**	17.02
Yoruba	<40years	52.84 ± 6.18
	≥40years	49.44 ± 5.89	0.46	0.73

^**p<0.001