Table 2.

Mean 2016 food prices (USD per 100 g and 100 kcal edible portion) by food groups and food processing category.

	Cost per 100 g				Cost per 100 kcal
	N	$/100 g (SD)	95% CI	Median (IQR)	$/100 kcal (SD)	95% CI	Median (IQR)
All items	371	0.93 (0.76)	[0.86, 1.01]	0.72 (0.94)	0.85 (1.00)	[0.75, 0.95]	0.49 (0.80)
MYPYRAMID FOOD GROUPS
Grains	102	0.94 (0.60)	[0.82, 1.05]	0.89 (0.70)	0.39 (0.39)	[0.32, 0.47]	0.28 (0.30)
Fats and sweets	44	0.67 (0.75)	[0.44, 0.90]	0.44 (0.75)	0.64 (1.18)	[0.28, 1.00]	0.26 (0.47)
Milk and milk products	28	0.58 (0.62)	[0.34, 0.82]	0.37 (0.47)	0.37 (0.31)	[0.24, 0.48]	0.28 (0.24)
Beans, nuts, and seeds	23	0.90 (0.89)	[0.51, 1.28]	0.52 (0.72)	0.62 (0.61)	[0.36, 0.89]	0.39 (0.70)
Meat, poultry, and fish	72	1.58 (0.83)	[1.39, 1.78]	1.55 (1.07)	0.90 (0.59)	[0.76, 1.04]	0.81 (0.60)
Vegetables	61	0.66 (0.57)	[0.51, 0.80]	0.48 (0.43)	1.68 (1.44)	[1.31, 2.05]	1.25 (2.16)
Fruits	41	0.76 (0.60)	[0.57, 0.95]	0.58 (0.70)	1.33 (1.11)	[0.98, 1.68]	0.90 (1.48)
NOVA CLASSIFICATION
Ultra-processed	213	0.93 (0.78)	[0.82, 1.04]	0.70 (0.88)	0.55 (0.61)	[0.47, 0.64]	0.38 (0.41)
Processed	27	0.71 (0.41)	[0.55, 0.87]	0.66 (0.60)	0.64 (0.48)	[0.45, 0.83]	0.53 (0.73)
Unprocessed	123	1.01 (0.79)	[0.86, 1.15]	0.76 (1.31)	1.45 (1.33)	[1.21, 1.68]	0.99 (1.52)
Culinary ingredients	8	0.73 (0.69)	[0.15, 1.30]	0.42 (0.82)	0.14 (0.12)	[0.04, 0.24]	0.10 (0.19)