Parameter	Range	Daily vitamin A intake (µg/day)
Parameter	Range	Northern	Southern	General
Age distribution	14 - 20	497 ± 12^bcd1	593 ± 11^efgh2	545 ± 54^abc
	[21 - 30]	501 ± 17^cd1	593 ± 15^efgh2	547 ± 52^abc
	>30	476 ± 03^ab1	572 ± 06^abcde2	524 ± 53^ab
Level of education	None	468 ± 12^a1	//	468 ± 12^a
	Primary education	489 ± 07^abcd1	585 ± 09^cdefg2	537 ± 53^abc
	Secondary education	495 ± 15^bcd1	591 ± 13^efgh2	543 ± 54^abc
	University education	606 ± 04^f1	610 ± 10^h1	608 ± 7^c
Socio-professional status	Housewife	489 ± 20^abcd1	561 ± 14^abc2	525 ± 42^ab
	Worker	512 ± 11^d1	584 ± 08^cdefg2	548 ± 40^abc
	Student	510 ± 13^d1	580 ± 12^abcdef2	545 ± 40^abc
Marital status	Married	481 ± 19^abc1	583 ± 23^bcdefg2	532 ± 59^abc
Marital status	Single	497 ± 17^bcd1	595 ± 15^efgh2	546 ± 56^abc
Number of children	0	491 ± 00^abcd1	585 ± 11^cdefg2	538 ± 52^abc
	1	495 ± 07^bcd1	593 ± 14^efgh2	544 ± 55^abc
	2	492 ± 15^bcd1	590 ± 13^efgh2	541 ± 55^abc
	≥3	480 ± 13^abc1	588 ± 11^defgh2	534 ± 60^abc
Age of the pregnancy	1^st trimester	484 ± 14^abc1	556 ± 26^a2	520 ± 44^ab
	2^nd trimester	493 ± 20^bcd1	559 ± 23^ab2	526 ± 41^abc
	3^rd trimester	536 ± 12^e1	606 ± 18^gh2	571 ± 41^bc
BMI	<18.5	475 ± 10^ab1	565 ± 00^abcd2	520 ± 50^ab
	[18.5 - 24.9]	494 ± 21^bcd1	600 ± 17^fgh2	547 ± 61^abc
	[25 - 29.9]	498 ± 13^bcd1	602 ± 14^fgh2	550 ± 58^abc
Geographic origin	Whole population	496 ± 23^bcd1	588 ± 21^defgh2	539 ± 43^abc