Table 2.

Effects on accuracy, univariate unadjusted (raw) and adjusted.

Effect			Unadjusted (raw)			Adjusted
			Odds ratio	95% CI	P value	Odds ratio	95% CI	P value
Manipulation
	Prior-knowledge group (reference=basic)		1.03	.77-1.4	.85	1.03	0.76-1.4	.84
	Block 3		5.74	4.7-7.1	<.001	4.2	1.6-10.9	.003
	2		2.86	2.4-3.4		2.1	0.79-5.7	.14
	1		1	-		1	-	-
	Sma inconsistent differences TBEb and TBLc		.30	.25-.37	<.001	.45	0.33-0.61	<.001
	TBE only		.43	.32-.58		.58	0.37-0.90	.01
	Microd		1	-		1	-	-
	Lge consistent differences TBE and TBL		2.9	1.9-4.3	<.001	2.18	1.12-4.22	.02
	TBE only		2.9	2.0-4.2		2.47	1.2-5.0	.13
	TBL only		4.8	3.3-7.2		3.23	1.6-6.3	<.001
	Micro		1	-		1	-	-
Interactions
	Block	Prior-knowledge group
	3	Knowledge				1.79	1.1-2.9	.02
	2	Knowledge				.97	0.66-1.4	.89
	(ref) 1	Basic				-	-	-
	Block	Sm Inconsistent
	3	TBE and TBL				.42	0.23-0.78	.006
	3	TBE only				.17	0.08-0.36	<.001
	2	TBE and TBL				.60	0.33-0.93	.03
	2	TBE only				.37	0.17-0.78	.009
	(ref) 1	Micro				-	-	-
	Block	Lg Consistent
	3	TBE only				4.6	2.1-10.6	<.001
	3	TBL only				18.2	6.1-58.8	<.001
	3	TBE and TBL				10.8	4.2-29.0	<.001
	2	TBE only				1.34	0.58-3.1	.49
	2	TBL only				1.80	0.78-4.7	.21
	2	TBE and TBL				1.22	0.46-2.9	.67
	(ref) 1	Micro				-	-	-
Participant characteristics
	Sex (ref=female)		1.4	1.04-1.9	.03	1.55	1.1-2.2	.01
	Self-reported food label use		1.2	1.02-1.4	.02	1.04	0.89-1.21	.62
	Numeracy		1.2	1.1-1.3	<.001	1.11	1.01-1.21	.03
	Nutrition overview quiz		1.3	1.2-1.4	<.001	1.24	1.11-1.40	<.001
	Quarter enrolled (ref=2nd)		1.1	.81-1.5	.52	.77	0.55-1.07	.12

^aSm: Small.

^bTBL: To be limited.

^cTBE: To be encouraged.

^dMicro: Micronutrients.

^eLg: Large.