Assessing validity of a short food frequency questionnaire on present dietary intake of elderly Icelanders

Eysteinsdottir, Tinna; Thorsdottir, Inga; Gunnarsdottir, Ingibjorg; Steingrimsdottir, Laufey

doi:10.1186/1475-2891-11-12

Nutrition Journal

Table 1 Correlation between grams of intake from food records and calculated intake from the AGES-FFQ

From: Assessing validity of a short food frequency questionnaire on present dietary intake of elderly Icelanders

	Food record g/d			AGES-FFQ g/d
	P10	median	P90	P10	median	P90	correlation	p-value
Men (n = 53)
Meat	7	90	248	43	100	100	0.21	0.124
Fish	20	77	190	36	85	114	0.23	0.098
Fish toppings	0	0	23	2	10	23	0.23	0.146
Potatoes	22	74	174	24	86	110	0.46	< 0.001
Fresh fruits	0	87	226	24	86	110	0.50	< 0.001
Blood/liver sausage	0	0	13	0	3	17	0.05	0.746
Rye bread/flatbread	0	17	59	2	25	50	0.17	0.219
Whole-wheat bread	11	45	73	11	50	50	0.19	0.169
Oatmeal/muesli	0	0	227	0	95	190	0.46	0.001
Cooked vegetables	0	29	113	3	19	60	0.17	0.221
Raw vegetables	0	33	150	3	19	90	0.33	0.015
Cakes and cookies	0	51	137	10	15	70	0.41	0.002
Candy	0	0	13	0	8	18	0.40	0.003
Dairy products	0	84	241	7	103	205	0.55	< 0.001
Milk	0	133	560	0	83	264	0.49	< 0.001
Pure fruit juice	0	0	192	0	34	160	0.50	< 0.001
Soft drink and sweet
juice	0	0	134	0	12	231	0.19	0.177
Cod liver oil	0	0	8	0	6	6	0.51	< 0.001
Coffee*	87	357	793	105	735	1155	0.63	< 0.001
Tea*	0	0	200	0	110	330	0.71	< 0.001
Sugar in coffee/tea*	0	0	11	0	0	8	0.53	< 0.001
Women (n = 75)
Meat	21	59	151	29	29	68	0.11	0.361
Fish	21	55	137	28	65	102	-0.02	0.873
Fish toppings	0	0	28	0	3	35	0.37	0.001
Potatoes	18	60	116	18	67	85	0.01	0.969
Fresh fruits	39	127	316	60	120	240	0.36	0.001
Blood/liver sausage	0	0	14	0	2	13	0.37	0.001
Rye bread/flatbread	0	7	40	2	30	60	0.42	< 0.001
Whole-wheat bread	1	35	76	10	45	45	0.28	0.017
Oatmeal/muesli	0	52	159	3	75	150	0.48	< 0.001
Cooked vegetables	0	25	90	3	45	90	0.20	0.089
Raw vegetables	0	53	141	17	40	80	0.40	< 0.001
Cakes and cookies	0	36	123	2	30	60	0.20	0.087
Candy	0	0	23	1	6	30	0.43	< 0.001
Dairy products	0	100	217	6	85	170	0.50	< 0.001
Milk	0	113	369	0	29	135	0.45	< 0.001
Pure fruit juice	0	0	167	0	34	160	0.49	< 0.001
Soft drink and sweet
juice	0	0	148	0	8	48	0.19	0.104
Cod liver oil	0	2	9	0	7	7	0.42	< 0.001
Coffee*	67	283	647	98	293	683	0.44	< 0.001
Tea*	0	0	363	0	360	840	0.61	< 0.001
Sugar in coffee/tea*	0	0	3	0	0	0	0.30	0.008

* portions per day

Back to article page

ISSN: 1475-2891

Contact us

General enquiries: journalsubmissions@springernature.com