The challenge of achieving basal energy, iron and zinc provision for home consumption through family farming in the Andes: a comparison of coverage through contemporary production systems and selected agricultural interventions

Table 5 Regression coefficients, standard errors (SE), p values and significance under three models for energy, iron and zinc balance (N = 165)

Predictor	Coefficient	SE	p value	Sig.
Energy balance
Intercept	519,107.16	105,978.64	0.000	***
Household size	−809,849.58	18,288.05	<2e−16	***
Landrace potato (m²)	1720.79	18.92	<2e−16	***
Bred potato (m²)	2311.17	38.56	<2e−16	***
Barley (kg)	3957.88	168.97	<2e−16	***
Faba (kg)	2708.56	357.95	0.000	***
Lupine (kg)	2430.56	311.17	0.000	***
Oats (kg)	2992.72	413.65	0.000	***
Cattle^a	173,366.37	20,712.54	0.000	***
Adjusted R ²	0.992
Iron balance
Intercept	6100.00	2600.00	0.018	*
Household size	−11,000.00	440.00	<2e−16	***
Landrace potato (m²)	5.80	0.48	<2e−16	***
Bred potato (m²)	13.00	0.93	<2e−16	***
Barley (m²)	3.10	1.10	0.004	**
Mashua (kg)	19.00	7.70	0.017	*
Barley (kg)	98.00	5.10	<2e−16	***
Faba (kg)	66.00	8.70	0.000	***
Oats (kg)	31.00	10.00	0.003	**
Adjusted R ²	0.943
Zinc balance
Intercept	4677.76	604.52	0.000	***
Household size	−5028.19	104.29	<2e−16	***
Landrace potato (m²)	5.45	0.11	<2e−16	***
Bred potato (m²)	7.07	0.22	<2e−16	***
Barley (kg)	31.85	0.96	<2e−16	***
Faba (kg)	27.37	2.03	<2e−16	***
Lupine (kg)	45.66	1.76	<2e−16	***
Oats (kg)	39.62	2.35	<2e−16	***
Sheep^a	255.16	25.70	<2e−16	***
Adjusted R ²	0.987

ISSN: 2048-7010