Validity and reliability of a food frequency questionnaire to estimate dietary intake among Lebanese children

Nutrition Journal

Table 2 Mean ± SD, mean difference, Spearman’s correlation (r), % agreement and 95 % Limits of Agreement (LOA) for selected energy and nutrients intakes as measured by FFQ-1 and mean 24-HRs (n = 111)

Nutrients	FFQ-1	24-HRs	Mean difference	Spearman’s r^a	Percent agreement (same & adjacent quartile)	95 % LOA
Nutrients	Mean ± SD	Mean ± SD	Mean difference	Spearman’s r^a	Percent agreement (same & adjacent quartile)	95 % LOA
Energy (Kcal)	2560.86 ± 822.32	1760.66 ± 489.26	800.20 ± 689.88	0.54**	81.08	−1015.12	−170.37
Protein (g)	81.71 ± 25.88	60.71 ± 19.23	21.00 ± 26.22	0.33**	78.38	−28.36	9.03
Carbohydrate (g)	351.87 ± 120.07	229.87 ± 63.52	121.99 ± 105.15	0.38**	81.98	−170.79	−52.54
Fat (g)	96.47 ± 35.70	68.42 ± 25.82	28.04 ± 29.15	0.33**	84.68	−13.35	−2.16
Saturated fat (g)	30.17 ± 12.47	21.00 ± 7.49	9.17 ± 11.06	0.39**	81.98	−14.16	7.89
MUFA (g)	34.87 ± 13.31	24.20 ± 10.02	10.67 ± 10.92	0.26**	87.39	−5.58	6.13
PUFA (g)	20.80 ± 10.35	15.89 ± 9.92	4.91 ± 9.99	0.33**	81.08	−0.48	8.25
Trans-fatty Acid (g)	0.16 ± 0.16	0.10 ± 0.10	0.05 ± 0.16	0.34**	76.58	−0.06	0.02
Calcium (mg)	996.76 ± 365.68	628.19 ± 231.70	368.56 ± 364.47	0.44**	79.28	−382.53	44.68
Iron (mg)	19.09 ± 7.15	13.37 ± 4.65	5.72 ± 5.83	0.45**	80.18	−6.00	0.28
Fiber (g)	23.36 ± 9.60	15.00 ± 5.03	8.36 ± 8.77	0.37**	79.28	−12.12	−3.61
Sugar (g)	113.47 ± 47.94	63.28 ± 21.72	50.24 ± 43.25	0.35**	84.68	−55.86	−19.57

ISSN: 1475-2891