Variables	Modalities	Frequency	Percentage (%)
Sex	boys	214	50.2
	girls	212	49.2
	Total	426	100
Age group	8 à 10	171	40.1
	11 à 12	205	48.1
	13 à 14	50	11.7
	Total	426	100.0
Residential areas	Urban	237	55.6
	Peri-urban	189	44.4
	Total	426	100.0
Household Size	≤5	91	21.4
	>5	335	78.6
	Total	426	100.0
Number of siblings	<5	296	69.5
	≥5	130	30.5
	Total	426	100.0
Mother’s education	illiterate	212	49.8
	Primary	89	20.9
	Secondary	100	23.5
	Supérior	25	5.9
	Total	426	100.0
Father’s education	Illiterate	108	26.6
	Primary	79	19.5
	Secondary	132	32.5
	Supérior	87	21.4
	Total	406	100.0
Table 1: Social demographic characteristics of schoolchildren

Variables	Total population (N = 426)	Girls (n = 213)	Boys (n = 213)	P-value
Age (years)	10.92±1.32	10.80± 1.33	11.04± 1.30	0,068^ns
Height (cm)	144.98±9.61	145.33± 10.00	144.49± 9.22	0,415^ns
Weight (Kg)	35.69± 8.30	36.72± 8.84	34.69± 7.62	0,017^s
BMI (Kg/m²)	16.88± 2.33	17.24± 2.56	16.53± 2.02	0,002^s
Independent test t used to compare averages; N=total population; n= population; BMI = Body Mass Index; ns = not significant at P> 0.05; S = significant a P to P <0.05 Table 2: Anthropometric measurements of schoolchildren

Nutritional status (WHO BMI-for-age Z scores)		Boys	Girls	Total	P-value
BMI-for- âge	Underweight <-2SD	28 (13.1 %)	30(14.2 %)	58 (13.6 %)	0.833^ns
	Normal >-2SD à +1 SD	174 (81.3 %)`	165 (77.8 %)	339(79.6 %)	0.781^ns
	Overweight/ Obesity >+1SD	12 (5.6 %)	17 (8.0 %)	29(6.8 %)	0.514^ns
Ns = not significant at p <0.05 Table 3: Nutritional status of the population by sex

variables	Modalities	frequency	Good school performance		Bivariante logistic regression		Multi variante logistic regression
		N°	%	P-value	OR (95 %)	P-value	OR (95 %)	P-value
Animal Food	≤3 days/w	341	203 (59.53)	0.937
Animal Food	>3 days/w	85	51 (60.00)	0.937	1.020(0.628-1,656)	0,937	0.871(0.522-1.453)	0.597
Fruits and vegetables	≤3 days/w	412	244 (59.22)	0.360
Fruits and vegetables	>3 days/w	14	10 (71.42)	0.360	1.721 (0.531-5.580)	0,365	1.624(0.483-5.565)	0.433
cookies	≤3 days/w	363	210 (57.85)	0.070
cookies	>3 days/w	63	44(69.84)	0.070	1,687 (0.948-3.004)	0.076	1.911(1.039-3.516)	0.037
Legumes	≤3 days/w	392	233 (59.44)	0.791
Legumes	>3 days/w	34	21 (61.76)	0.791	1.102 (0.536-2.266)	0,791	0.908(0.428-1.924)	0.800
Cereals	≤3 days/w	34	23 (67.64)	0.320
Cereals	>3 days/w	392	231 (58.92)	0.320	0.686(0.325-1.447)	0.323	0.521(0.238-1.142)	0.103
Milk and dairy products	≤3 days/w	405	238 (58.76)	0.113
Milk and dairy products	>3 days/w	21	16 (76.19)	0.113	2.245(0,807-6.249)	0,121	2.313(0.804-6.657)	0.120
Sugary drinks	≤3 days/w	270	152 (56.30)	0.065
Sugary drinks	>3 days/w	156	102 (65.38)	0.065	1.466(0,975-2.206)	0,066	1.539(1.010-2.345)	0.045
N = number of respondents; Jrs / s = days per week; OR = odds ratio; % = percentage of schoolchildren performing well in mathematics Table 4:Bivariate and multivariate logistic regressions between good school performance and food

Variables	Modalités	Good school performance			Multivariate logistic régression
		frequency	%	P-value	OR (95 %)	P-value
Sex	Boys	214	123(57.47)	0.364	1.252(0.829-1.891)	0.285
Sex	Girls	212	131(61.79)	0.364
Residential areas	Urban	237	115(48.52)	0.000	2,759(1.773-4.294)	0,000
Residential areas	Peri-urban	189	139(73.54)	0.000
Nationality	Ivorian	308	186(60.39)	0.603	1.153(0.715-1.860)	0,560
Nationality	Non-Ivorian	118	68(57.63)	0.603
Age group	8 à 10	171	95(55.56)	0.176	2.507(1.219-5.154)	0.012
	11 à 12	205	124(60.48)		1.643(0.816-3.308)	0.165
	13 à 14	50	35(70)
Household Size	≤5	91	52(57.14)	0.586	1.298(0.774-2.179)	0.323
Household Size	>5	335	202(60.29)	0.586
Siblings	<5	296	188(63.51)	0.014	0.667(0.417-1.065)	0.090
Siblings	≥5	130	66(50.77)	0.014
Mather’s education	illiterate	301	167(55.48)	0.007	1.543(0.939-2.537)	0.087
Mather’s education	Primary and more	125	87(69.6)	0.007
Father’s education	illiterate	187	100(53.47)	0.022	1.221(0.772-1.932)	0.397
Father’s education	Primary and more	239	154(64.44)	0.022
BMI	underweight	58	33(56.90)	0.889	0.897(0.344-2.340)	0.825
	Normal	339	204(60.17)		0.823(0.363-1.869)	0.642
	Overweight / Obesity	29	17(58.62)
N = number of respondents; BMI = body mass index for age; OR = Odds Ratio; P-value is significant at p <0.05 Table 5: Multivariate logistic regression between school performance and socio-demographic characteristics of schoolchildren in Yopougon and Bingerville (N = 426)