The web-based ASSO-food frequency questionnaire for adolescents: relative and absolute reproducibility assessment

Filippi, Anna Rita; Amodio, Emanuele; Napoli, Giuseppe; Breda, João; Bianco, Antonino; Jemni, Monèm; Censi, Laura; Mammina, Caterina; Tabacchi, Garden

doi:10.1186/1475-2891-13-119

Nutrition Journal

Table 5 Intraclass correlation coefficients, exponentiated mean difference and 95% LOA of nutrients daily intake, performed on transformed, energy-adjusted data

From: The web-based ASSO-food frequency questionnaire for adolescents: relative and absolute reproducibility assessment

Nutrients	ICC	Mean difference (%)	P-value t test	Lower limit (%)^a	Upper limit (%)^a
Total fat (g)	0.36	100.40	0.284	92.31	109.42
SFA (g)	0.50	99.80	0.884	77.11	129.69
Myristic acid (g)	0.33	100.20	0.602	90.48	110.52
Palmitic acid (g)	0.43	100.60	0.237	89.58	112.75
Stearic acid (g)	0.47	100.80	0.103	89.58	112.75
MUFA (g)	0.38	100.20	0.767	87.81	113.88
Oleic acid (g)	0.37	100.00	0.967	87.81	113.88
PUFA (g)	0.28	100.00	0.972	81.87	122.14
Linoleic acid (g)	0.29	100.00	0.999	81.06	123.37
Linolenic acid (g)	0.42	100.40	0.165	94.18	107.25
Arachidonic acid (g)	0.50	100.00	0.862	98.02	102.02
EPA (g)	0.59	100.00	0.868	98.02	102.02
DHA (g)	0.61	100.00	0.877	96.08	104.08
TFA (g)	0.44	100.00	0.927	92.31	108.33
Cholesterol (mg)	0.23	100.40	0.476	88.69	113.88
Proteins (g)	0.41	100.30	0.347	93.24	108.33
Arginine (g)	0.48	100.30	0.430	91.39	110.52
Cystine (g)	0.50	100.30	0.275	94.18	106.18
Phenylalanine (g)	0.48	100.50	0.194	92.31	109.42
Isoleucine (g)	0.47	100.50	0.162	92.31	109.42
Histidine (g)	0.49	100.30	0.360	92.31	109.42
Leucine (g)	0.40	99.70	0.738	82.70	119.72
Lysine (g)	0.40	99.60	0.607	82.70	119.72
Methionine (g)	0.52	100.20	0.622	91.39	109.42
Tyrosine (g)	0.49	100.50	0.209	92.31	109.42
Threonine (g)	0.49	100.40	0.254	92.31	109.42
Tryptophan (g)	0.52	100.20	0.541	93.24	107.25
Valine (g)	0.47	100.60	0.125	92.31	110.52
Carbohydrates (g)	0.43	100.80	0.001	96.08	106.18
Sugar (g)	0.51	101.11	0.022	90.48	112.75
Fructose (g)	0.51	101.71	0.053	82.70	125.86
Lactose (g)	0.60	100.90	0.298	81.87	124.61
Sucrose (g)	0.53	101.11	0.063	87.81	116.18
Starch (g)	0.31	101.01	0.094	87.81	116.18
Fiber (g)	0.46	100.80	0.068	91.39	111.63
Water (ml)	0.61	100.60	0.090	93.24	108.33
Calcium (mg)	0.45	100.40	0.338	91.39	110.52
Phosphorus (mg)	0.49	100.00	0.839	95.12	105.13
Iron (mg)	0.37	100.40	0.432	89.58	112.75
Magnesium (mg)	0.45	100.30	0.292	93.24	108.33
Vitamin A (RAE)	0.48	100.30	0.649	84.37	118.53
Thiamine (mg)	0.55	100.20	0.570	91.39	110.52
Riboflavin (mg)	0.45	100.40	0.322	92.31	109.42
Niacin (mg)	0.59	100.80	0.321	83.53	122.14
Vitamin B₆ (mg)	0.46	100.30	0.446	90.48	110.52
Folate (μg)	0.52	100.40	0.453	89.58	112.75
Vitamin B₁₂ (μg)	0.46	100.10	0.844	87.81	113.88
Vitamin C (mg)	0.57	100.80	0.140	88.69	113.88
Vitamin D (IU)	0.56	100.40	0.510	87.81	115.03
Vitamin E (mg)	0.51	100.20	0.694	91.39	109.42
Ethanol (g)	0.73	99.10	0.247	83.53	118.53
Caffeine (mg)	0.63	101.21	0.304	77.11	132.31

^aLower and upper Limits Of Agreement estimated through the Bland-Altman method.
SFA: saturated fatty acids; MUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids; EPA: eicosapentaenoic acid; DHA: docohexaenoic acid; TFA: trans fatty acids; RAE: retinol activity equivalents.

Back to article page

ISSN: 1475-2891

Contact us

General enquiries: journalsubmissions@springernature.com