Association of body perception and dietary weight management behaviours among children and adolescents aged 6–17 years in China: cross-sectional study using CHNS (2015)

Table 3 Comparing self-perceptive weight and actual weight status of children and adolescents aged 6–17 years in China using Kappa test and Chi-square test (N = 1,369, (%))

Self-perceptive weight status	Actual Weight Status			Kappa	χ²	P
Self-perceptive weight status	Underweight	Normal	Overweight/Obesity	Kappa	χ²	P
Boys
Underweight	24 (45.28)	80 (17.13)	15 (7.18)	0.2391	134.664	0.000
Normal	28 (52.83)	364 (77.94)	128 (61.24)
Overweight/Obesity	1 (1.89)	23 (4.93)	66 (31.58)
Girls
Underweight	26 (43.33)	61 (14.52)	13 (8.13)	0.1447	56.761	0.000
Normal	33 (55.00)		114 (71.25)
Overweight/Obesity	1 (1.67)	40 (9.52)	33 (20.63)
Total
Underweight	50 (44.25)	141 (15.90)	28 (7.59)	0.1960	178.343	0.000
Normal	61 (53.98)	683 (77.00)	242 (65.58)
Overweight/Obesity	2 (1.77)	63 (7.10)	99 (26.83)

Note: The chi-square tests and the Kappa test were used to examine agreement between self-perceived weight status and actual weight status. Value is N (%). Proportions are column percentages. Bold values represent statistically significant (P < 0.05)

ISSN: 1471-2458