Table 1.

Sociodemographic characteristics of the sample: adult members (n 276) in ten communities on the Navajo Nation, May–November 2007

	Food secure		Food insecurity at household level		Food insecurity at adult level		Food insecurity at child level
	(1)		(2)		(3)		(4)			Comparisons significant
Sociodemographic characteristic	Mean	sd	Mean	sd	Mean	sd	Mean	sd	P value	for ANOVA
%	23·2		22·1				25·7						28·9
Sex (%)
Male	23·4		21·3				22·5						22·5								NS
Female	76·6		78·7				77·5						77·5
Age (years) (n 274)	42·8	14·1	45·4	17·2	46·4	18·7	50·6	17·2	0·0476	NS
Household size	4·4	2·1	4·3	2·9	3·8	1·9	4·1	1·9	NS	NS
Years of schooling (n 275)	12·3	2·5	12·0	2·8	11·7	3·6	9·9	4·4	0·0001	1 v. 4, 2 v. 4
High education, >12 years of schooling (%)	42·19		23·33				39·44						13·75								0·0003
Full-time employed (%)	54·69		37·70				38·03						27·50								0·01
Material style of life score	13·2	7·8	12·2	5·4	10·5	6·0	8·7	5·6	0·0001	1 v. 4, 2 v. 4
Marriage (%)
Never married	23·4		26·2				26·8						20·0
Married	43·8		24·6				32·4						35·0								0·15
Separated	3·1		11·5				2·8						6·3
Divorced	7·8		8·2				9·9						13·8
Widowed	6·3		13·1				11·3						13·8
Common law	10·9		16·4				16·9						11·3
Food assistance programmes (%) (n 273)
WIC	20·6		24·6				19·7						26·9								NS
Food stamps	22·2		31·2				18·3						33·3								NS
Commodity foods	17·5		9·8				23·9						20·5								NS
Eat at senior centre	11·1		21·3				25·4						23·1								NS
Food Bank/Navajo Way	6·4		8·2				16·9						3·9								0·03

WIC, Special Supplemental Nutrition Program for Women, Infants, and Children.

The χ ² test was used for dichotomous and categorical variables. P < 0·05 was the level of significance for χ ².

ANOVA was used for continuous variables. P = 0·008 was the level of significance for ANOVA.