Table 2.
Accuracy of parent-reported data for child height, weight, BMI-for-age percentile, and weight classification as compared to electronic health record data
| By child age | By child race/ethnicity | ||||||
|---|---|---|---|---|---|---|---|
| Accuracy of parent-reported data | All | Age 3–5 y | Age 6–12 y | NonHispanic White | Black | Latino | Asian |
| % | % | % | % | % | % | % | |
| (N = 622) | (N = 256) | (N = 366) | (N = 197) | (N = 75) | (N = 216) | (N = 101) | |
| Height1 Within ±1 inch of EHR height | 49.2 | 46.1 | 51.4 | 52.8 | 50.7 | 42.6b | 53.5 |
| Underestimates EHR height by >1 inch | 35.4 | 36.3 | 34.7 | 34.0 | 41.3 | 37.0 | 31.7 |
| Overestimates EHR height by >1 inch | 17.6 | 17.6 | 13.9 | 13.2 | 8.0 | 20.4 | 14.8 |
| Mean (SD) difference of parent-reported vs. EHR height | -1.1 (3.7) | -1.0 (3.7) | -1.2 (3.7) | -0.8 (2.9) | -2.1b (3.9) | -1.3 (4.4) | -1.0 (3.2) |
| Weight1 | (N = 796) | (N = 343) | (N = 452) | (N = 241) | (N = 87) | (N = 287) | (N = 139) |
| Within ± 2 lbs. of EHR weight | 58.2 | 68.2 | 50.7a | 60.6 | 59.8 | 51.6b | 62.6 |
| Underestimates EHR weight by > 2 lbs. | 31.3 | 21.6 | 38.6a | 28.6 | 31.0 | 37.9b | 25.9 |
| Overestimates EHR weight by > 2 lbs. | 10.4 | 10.2 | 10.8 | 10.8 | 9.2 | 10.2 | 11.5 |
| Mean (SD) difference of parent-reported vs. EHR weight | -1.5 (6.4) | -0.7 (3.1) | −2.1a (8.1) | -0.9 (7.5) | -2.0 (5.1) | -2.2b (5.6) | -1.1 (5.4) |
| BMI-for-age percentile1 | (N = 558) | (N = 225) | (N = 333) | (N = 189) | (N = 68) | (N = 186) | (N = 85) |
| Within ± 5 percentile pts. of EHR | 46.4 | 35.5 | 53.8d | 40.8 | 55.9b | 47.3 | 47.1 |
| Underestimates EHR by > 5 percentiles | 19.0 | 19.6 | 18.6 | 25.9 | 8.8b | 17.2b | 17.6 |
| Overestimates EHR by > 5 percentiles | 34.4 | 44.9 | 27.6d | 33.3 | 35.3 | 35.5 | 35.3 |
| Mean (SD) difference of parent-report vs. EHR-based BMI-for-age percentile | 5.5 (26.5) | 9.7 (30.4) | 2.7a (23.2) | 3.1 (25.2) | 10.7b (27.3) | 5.1 (26.6) | 7.1 (29.4) |
| Weight classification1 | (N = 558) | (N = 225) | (N = 333) | (N = 189) | (N = 68) | (N = 186) | (N = 85) |
| Overweight/obese classification matched EHR2b | 79.0 | 75.6 | 81.4 | 79.4 | 80.9 | 76.9 | 80.0 |
| Child misclassified as not overweight/obese | 3.8 | 2.2 | 4.8 | 4.2 | 1.5 | 4.8 | 3.5 |
| Child misclassified as overweight/obese | 17.2 | 22.2 | 13.8a | 16.4 | 17.6 | 18.3 | 16.5 |
| Obesity classification matched EHR2b | 81.9 | 80.0 | 83.2 | 87.3 | 80.9 | 78.5b | 78.8 |
| Child misclassified as not obese | 3.4 | 2.2 | 4.2 | 3.2 | 4.4 | 3.2 | 2.4 |
| Child misclassified as obese | 14.7 | 17.8 | 12.6 | 9.5 | 14.7 | 18.3b | 18.8b |
EHR = Electronic health record; SD = Standard deviation around mean difference.
1Restricted to children with valid parent-reported data.
2Children with a BMI-for-age percentile ≥ 85 were classified as overweight/obese and ≥ 95 as obese.
aSignificant difference between age groups by chi-square test (P < .05).
bSignificantly different from nonHispanic Whites by chi-square test (P < .05).