Table 1. Characteristics of participants by ethnicity.

Factors	Ethnicities			P-value trend
	Arabs	South-East Asia	South Asia
	n (%)	n (%)	n (%)
Age (years)
20–39	316 (20.3)	90 (5.8)	186 (11.9)	<0.0001
40–60	497 (31.9)	59 (3.8)	276 (17.8)	<0.0001
>60	98 (6.3)	5 (0.32)	28 (1.8)	<0.0001
Gender
Female	270 (17.4)	104 (6.7)	104 (6.7)	<0.0001
Male	641 (41.2)	50 (3.2)	386 (24.8)	<0.0001
BMI
Normal (18.5–24.9)	107 (6.9)	62 (3.9)	143 (9.2)	<0.0001
Overweight (25–29.9)	296 (19.0)	65 (4.2)	225 (14.5)	<0.0001
Obese (≥30)	508 (32.7)	27 (1.7)	122 (7.9)	<0.0001
*25 OHD (ng/l)	13.5±0.34	17.8±0.82	13.3±0.46	<0.0001

BMI, body mass index; *Data are presented as mean ± SD.