Do children report differently from their parents and from observed data? Cross-sectional data on fruit, water, sugar-sweetened beverages and break-time foods

Table 3 Agreement between parent and child reports on consumption of fruit, water and sugar-sweetened beverages (SSB)

Primary outcomes	N	Parent reported Mean (SD) or n (%)	Child reported Mean (SD) or n (%)	Difference Mean (SD)³	Overall agreement	Kappa^1,2	P-value³	ICC^1,4
Average amount of fruit consumed (# pieces)	252	1.42 (0.5)	1.48 (0.5)	0.06 (0.6)	-	-	0.150	.39 ***
Daily fruit % yes	250	117 (46.8 %)	99 (39.6 %)	-	56.8 %	.12 *	0.101	.22 *
Average amount of water consumed (L)	253	0.63 (0.3)	0.66 (0.3)	0.04 (0.3)	-	-	0.065	.59 ***
Daily water % yes	258	174 (67.4 %)	194 (75.2 %)	-	76.7 %	.44 ***	0.013	.61 ***
Average amount of SSB consumed (L)	253	0.92 (0.6)	1.33 (0.8)	0.41 (0.9)***	-	-	<0.001	.44 ***
Daily SSB % yes	258	141 (54.7 %)	83 (32.2 %)	-	58.1 %	.19 **	<0.001	.32 ***

¹Significance (2-tailed): *0.05 level, **0.01 level, ***≤0.001 level
²Cohen’s Kappa - corrected for agreement based on chance
³McNemar test (dichotomous variables) or Paired T-test (continues variables)
⁴Average Intra-class Correlation Coefficients (ICC) resembles measure of absolute agreement (dichotomous variables) or consistency (continues variables)

ISSN: 1471-2458