Table 4.

Partial regression coefficients (β), crude and adjusted, between serum ferritin (γ) and egg consumption (Xi) (times/d) in a population between 5 and 17 years of age, Colombia, ENSIN-2015

	Crude			Adjusted difference†
Variable	β*	95 % CI	P	β	95 % CI	P
Total	2⋅66	1⋅10, 4⋅21		2⋅47	1⋅01, 3⋅94
Sex
Male	3⋅35	1⋅08, 5⋅62	0⋅004	Ref	Ref	Ref
Female	1⋅92	0⋅16, 3⋅68	0⋅003	−1⋅16	−3⋅94, 1⋅62	0⋅407
Age group (years)
Children (5–10)	2⋅82	0⋅61, 5⋅04	0⋅013	Ref	Ref	Ref
Adolescents (11–17)	2⋅55	0⋅40, 4⋅69	0⋅021	0⋅02	−3⋅00, 3⋅05	0⋅989
Age (years)
5–8	2⋅95	0⋅45, 5⋅44	0⋅022	Ref	Ref	Ref
9–11	2⋅82	−0⋅15, 5⋅80	0⋅062	−0⋅31	−4⋅08, 3⋅45	0⋅869
12–15	4⋅16	0⋅99, 7⋅32	0⋅011	0⋅97	−2⋅95, 4⋅89	0⋅622
16–17	−1⋅12	−4⋅10, 1⋅85	0⋅453	−3⋅55	−7⋅31, 0⋅21	0⋅064
Stunted growth
No	2⋅91	1⋅34, 4⋅49	<0⋅0001	Ref	Ref	Ref
Yes (z < 2)	−0⋅31	−4⋅87, 4⋅25	0⋅891	−3⋅78	−8⋅02, 0⋅46	0⋅080
Nutritional status (BMI)‡
No	3⋅19	1⋅53, 4⋅85	<0⋅0001	3⋅85	−4⋅79, 12⋅49	0⋅376
Overweight (≥25 mg/m2)	−0⋅64	−5⋅28, 3⋅99	0⋅782	0⋅34	−9⋅46, 10⋅14	0⋅945
Obese (≥30 kg/m2)	−0⋅92	−10⋅28, 8⋅44	0⋅837	Ref	Ref	Ref
Food insecurity§
No	3⋅27	0⋅04, 6⋅51	0⋅047	2⋅93	−1⋅90, 7⋅76	0⋅230
Mild	1⋅85	−0⋅32, 4⋅02	0⋅094	2⋅16	−2⋅24, 6⋅56	0⋅331
Moderate	4⋅92	1⋅63, 8⋅21	0⋅004	4⋅62	−0⋅30, 9⋅55	0⋅065
Severe	0⋅12	−3⋅82, 4⋅06	0⋅952	Ref	Ref	Ref
Wealth index
Q1 – the poorest	1⋅81	−2⋅21, 5⋅84	0⋅370	−0⋅69	−5⋅50, 4⋅11	0⋅774
Q2	0⋅69	−2⋅17, 3⋅54	0⋅632	−1⋅80	−5⋅95, 2⋅36	0⋅391
Q3	2⋅56	−0⋅37, 5⋅50	0⋅085	Ref	Ref	Ref
Q4	2⋅03	−0⋅77, 4⋅82	0⋅150	−0⋅19	−4⋅07, 3⋅68	0⋅921
Q5 – the richest	4⋅77	0⋅74, 8⋅79	0⋅022	2⋅27	−2⋅53, 7⋅06	0⋅348
Ethnicity
Mestizo	2⋅87	1⋅27, 4⋅47	0⋅001	1⋅12	−3⋅28, 5⋅54	0⋅611
Black/Afro-descendant	−2⋅04	−7⋅38, 3⋅31	0⋅429	−3⋅94	−10⋅65, 2⋅78	0⋅246
Indigenous	1⋅45	−2⋅95, 5⋅84	0⋅487	Ref	Ref	Ref
Area
Urban	3⋅22	1⋅39, 5⋅06	0⋅001	Ref	Ref	Ref
Rural	1⋅27	−1⋅54, 4⋅09	0⋅369	−1⋅71	−4⋅98, 1⋅56	0⋅301
Region
Central	1⋅25	−0⋅85, 3⋅35	0⋅222	2⋅38	−0⋅89, 5⋅64	0⋅150
Atlantic	0⋅07	−3⋅94, 4⋅08	0⋅970	0⋅65	−3⋅89, 5⋅20	0⋅774
Eastern	1⋅55	−1⋅91, 5⋅01	0⋅354	2⋅42	−1⋅53, 6⋅38	0⋅226
Pacific	0⋅63	−3⋅24, 4⋅51	0⋅727	1⋅99	−2⋅37, 6⋅35	0⋅365
Bogotá	12⋅88	Nd	Nd	13⋅40	5⋅51, 21⋅30	0⋅001
Amazon	−0⋅59	−3⋅95, 2⋅78	0⋅693	Ref	Ref	Ref

ENSIN-2015, Encuesta Nacional de la Situación Nutricional en Colombia-2015 (National Survey of the Nutritional Situation of Colombia-2015); Ref, reference; Q, quintile; Nd, no data.

^*Partial regression coefficient achieved in a simple linear regression model.

^†Partial regression coefficient achieved in a multiple linear regression model, where the dependent variable is the serum ferritin level (μ/l), and the main explanatory variable is the frequency/d of egg consumption. The model was adjusted for sex, age, nutritional status, level of food insecurity in the household, wealth index, ethnicity, and geographical area and region.

^‡Based on BMI equivalents according to the International Obesity Task Force.

^§Based on the Latin American and Caribbean Food Security (ELCSA) Scale.