Table 2.

BMI of the foreign students who stayed <6 months (n 200) and those who stayed >6 months (n 200) according to the WHO’s (1998) classifications

Interpretation	Period of stay (months)
	<6		>6		Total
	Frequency	Percentage	Frequency	Percentage	Frequency	Percentage
Underweight	11	5·5	5	2·5	16	4
Normal	135	67·5	26	13	161	40·25
Overweight	49	24·5	123	61·5	172	43
Obesity I	3	1·5	37	18·5	40	10
Obesity II	1	0·5	9	4·5	10	2·5
Obesity III	1	0·5	0	0	1	0·25
Total	200	100	200	100	400	100

χ² (P = 0·0004).