Table 3.

Percent correct by item and mean total scores on GERD scenario by literacy level.

	Immediate					Delayed
Questions	All n=755	Low n=89	Marginal n=125	Adequate n=541	p-value	All n=746	Low n=87	Marginal n=124	Adequate n=535	p-value
When does Dr. Baker want you to take your pill?	40.5	11.2	25.8	48.7	<0.001	37.5	4.6	14.5	48.1	<0.001
What food and drinks does Dr. Baker say you should avoid?
Coffee	54.7	48.3	56.8	55.3	<0.001	42.6	39.1	48.4	41.8	0.32
Tea	44.6	28.1	45.6	47.1	<0.001	34.2	24.1	36.3	35.4	0.11
Alcohol	38.9	30.3	26.4	43.3	<0.001	33.1	27.6	21.8	36.6	0.004
Anything with caffeine	70.9	37.1	64.0	78.0	<0.001	69.8	33.3	67.7	76.3	<0.001
Chocolate	31.3	23.6	23.2	34.4	0.01	27.7	16.1	22.8	30.7	0.008
Fatty foods	71.4	52.8	53.6	78.6	<0.001	68.1	43.7	54.0	75.3	<0.001
Acidic foods	77.5	58.4	68.8	82.6	<0.001	73.5	50.6	62.9	79.6	<0.001
How long should you wait to lie down after you finish eating?	87.8	73.0	82.4	91.5	<0.001	90.1	71.3	86.3	94.0	<0.001
When does Dr. Baker want to see you again?	84.8	57.3	76.0	91.3	<0.001	71.3	42.5	61.3	78.3	<0.001
Total Correct, Mean(SD)	6.0 (1.9)	4.2 (1.7)	5.2 (1.7)	6.5 (1.7)	<0.001	5.5 (1.9)	3.5 (1.6)	4.8 (1.6)	6.0 (1.8)	<0.001