Table 3. Percent agreement (%) and weighted kappa coefficients between parent and children BMI quintiles by dyad type and characteristics1.
| Characteristics | Father-son | Father-daughter | Mother-son | Mother-daughter | ||||
| Percent Agreement | Weighted kappa coefficient | Percent Agreement | Weighted kappa coefficient | Percent Agreement | Weighted kappa coefficient | Percent Agreement | Weighted kappa coefficient | |
| %2 (SEM )3 | weighted K 4 (SEM ) | % (SEM ) | weighted K (SEM ) | % (SEM ) | weighted K (SEM ) | % (SEM ) | weighted K(SEM) | |
| Total | 21.6 (0.1) | 0.08 (0.00) | 22.5 (0.1) | 0.10 (0.00) | 23.7 (0.1) | 0.12 (0.00) | 25.5 (0.1) | 0.18 (0.00) |
| Child age (years) | ||||||||
| 6–9 | 18.9 (0.2) | 0.12 (0.02) | 25.8 (0.3) | 0.01 (0.02) | 25.6 (0.2) | 0.15 (0.01) | 26.3 (0.3) | 0.13 (0.01) |
| 10–14 | 23.2 (0.2) | 0.15 (0.02) | 22.6 (0.1) | 0.16 (0.01) | 25.2 (0.2) | 0.14 (0.00) | 26.4 (0.1) | 0.19 (0.01) |
| 15–17 | 22.0 (0.2) | 0.14 (0.02) | 19.0 (0.3) | 0.08 (0.01) | 19.9 (0.2) | 0.11 (0.01) | 23.2 (0.1) | 0.17 (0.01) |
| Parental age (years) | ||||||||
| 20–34 | 17.3 (0.2) | 0.08 (0.01) | 26.1 (0.5) | 0.08 (0.02) | 26.8 (0.2) | 0.15 (0.01) | 23.6 (0.2) | 0.12 (0.01) |
| 35–49 | 22.0 (0.1) | 0.14 (0.02) | 22.5 (0.1) | 0.12 (0.00) | 23.5 (0.1) | 0.16 (0.01) | 26.2 (0.1) | 0.18 (0.00) |
| 50–65 | 23.5 (0.4) | 0.15 (0.01) | 19.9 (0.5) | 0.02 (0.02) | 17.7 (0.6) | −0.02 (0.02) | 23.5 (0.8) | 0.16 (0.03) |
| Parental education (years) | ||||||||
| ≤11 | 25.9 (0.3) | 0.22 (0.03) | 21.2 (0.2) | 0.03 (0.01) | 23.0 (0.3) | 0.16 (0.02) | 25.7 (0.2) | 0.13 (0.01) |
| 12 | 20.1 (0.2) | 0.08 (0.01) | 23.4 (0.2) | 0.10 (0.01) | 24.5 (0.2) | 0.11 (0.01) | 22.3 (0.2) | 0.16 (0.01) |
| 13–15 | 20.3 (0.3) | 0.07 (0.01) | 23.6 (0.5) | 0.09 (0.01) | 23.7 (0.2) | 0.16 (0.02) | 25.3 (0.2) | 0.16 (0.00) |
| 16+ | 22.2 (0.2) | 0.12 (0.01) | 21.5 (0.2) | 0.07 (0.01) | 23.4 (0.3) | 0.04 (0.01) | 29.0 (0.3) | 0.12 (0.04) |
| Parental race/ethnicity | ||||||||
| NH White5 | 21.0 (0.1) | 0.12 (0.02) | 21.8 (0.2) | 0.07 (0.00) | 23.2 (0.1) | 0.12 (0.00) | 24.8 (0.1) | 0.15 (0.01) |
| NH Black | 19.3 (0.4) | 0.09 (0.02) | 22.1 (0.8) | 0.25 (0.07) | 25.6 (0.2) | 0.11 (0.01) | 27.9 (0.3) | 0.24 (0.01) |
| Hispanic | 26.9 (0.3) | 0.19 (0.02) | 26.0 (0.3) | 0.03 (0.03) | 24.8 (0.1) | 0.15 (0.00) | 25.7 (0.2) | 0.10 (0.01) |
| Other | 17.8 (0.7) | −0.01 (0.02) | 23.5 (1.2) | 0.10 (0.02) | 21.8 (0.8) | 0.15 (0.18) | 25.6 (1.1) | 0.15 (0.02) |
| Annual household income | ||||||||
| Low | 23.0 (0.2) | 0.16 (0.06) | 23.1 (0.2) | 0.18 (0.02) | 24.3 (0.1) | 0.11 (0.00) | 25.8 (0.1) | 0.21 (0.01) |
| Middle | 21.2 (0.1) | 0.12 (0.02) | 20.8 (0.2) | 0.04 (0.01) | 22.7 (0.2) | 0.17 (0.02) | 24.1 (0.1) | 0.18 (0.01) |
| High | 21.1 (0.2) | 0.09 (0.01) | 23.9 (0.3) | 0.07 (0.01) | 24.2 (0.2) | 0.08 (0.01) | 26.6 (0.3) | 0.06 (0.05) |
| Parental marital status | ||||||||
| Other | 19.2 (0.9) | 0.11 (0.03) | 25.6 (1.3) | 0.06 (0.04) | 23.2 (0.2) | 0.11 (0.00) | 23.6 (0.2) | 0.19 (0.00) |
| Married | 21.9 (0.1) | 0.13 (0.01) | 22.3 (0.1) | 0.10 (0.00) | 23.9 (0.1) | 0.15 (0.01) | 26.1 (0.1) | 0.15 (0.00) |
| Parental MVPA/week5 | ||||||||
| <3 times | 22.3 (0.1) | 0.13 (0.02) | 21.3 (0.2) | 0.15 (0.00) | 21.9 (0.1) | 0.06 (0.00) | 25.5 (0.1) | 0.11 (0.02) |
| ≥3 times | 21.1 (0.1) | 0.12 (0.01) | 23.4 (0.2) | 0.06 (0.00) | 25.1 (0.1) | 0.17 (0.01) | 25.4 (0.1) | 0.20 (0.01) |
For children, age- and sex-specific quintiles of BMI were used. For parents, sex-specific BMI quintiles were used. Weighted kappa values can be interpreted as follows: κ<0.20 = poor agreement, κ between 0.20–0.40 = fair agreement, κ between 0.40–0.60 = moderate agreement, κ between 0.60–0.80 = good agreement, and κ≥0.80 = very good agreement.
The expected percent of agreement is 20%.
SEM are reported in parentheses and were obtained through Fay's balanced repeated replication (BRR) method of estimation.
Weighted kappa coefficients were calculated using the Cicchetti-Allison weight matrix (see text). All point estimates have taken MEPS’ sampling design into account. 5 NH, non-Hispanic;
MVPA, moderate-to-vigorous physical activity.
Source: Medical Expenditure Panel Survey, 2006–2007.