Table 2. Percent agreement between the child’s actual weight status based on BMI and the parents’ perception of their child’s weight status and Cohen’s kappa values.
| Weight status based on BMIa | Total | |||
|---|---|---|---|---|
| Not overweight n (%) |
Overweight n (%) |
Obese n (%) |
n (%) | |
| Parents’ perception in 2009 | ||||
| Not heavy | 6423 (97.5) | 425 (64.7) | 100 (59.3) | 6948 (93.6) |
| Heavy | 172 (2.5) | 229 (34.6) | 64 (36.2 | 465 (6.2 |
| Extremely heavy | 0 (0.0) | 6 (0.7) | 12 (4.5) | 18 (0.2) |
| Total | 6595 (100) | 660 (100) | 176 (100) | 7431 (100) |
| Parents’ perception in 2013 | ||||
| Not heavy | 6877 (97.9) | 352 (61.0) | 85 (54.7) | 7314 (94.2) |
| Heavy | 164 (2.1) | 251 (38.4) | 58 (38.3) | 473 (5.6) |
| Extremely heavy | 1 (0.0) | 3 (0.6) | 8 (7.0) | 12 (0.2) |
| Total | 7042 (100) | 606 (100) | 151 (100) | 7799 (100) |
Complex sample analysis was performed because the dataset incorporated a complex sampling design (unequal sampling) and a sample weight was assigned to each person sampled.
a The child’s BMI was calculated using the child’s weight and height as reported by the parents