Table 3.
Prevalence ratios (PRs) for a low frequency of balanced meal consumption by socioeconomic statusa
| Reference | Category | Main effect | Interaction | |||||
|---|---|---|---|---|---|---|---|---|
| PR | 95% CI | p | PR | 95% CI | p | |||
| Young adults (n = 2,182) | ||||||||
| Socioeconomic status | ||||||||
| EA | Higher | Lower | 1.12 | 1.04–1.21 | 0.004 | 1.11 | 1.01–1.23 | 0.040 |
| SFS | Moderate | Poor | 1.11 | 1.03–1.19 | 0.004 | 1.10 | 1.02–1.19 | 0.017 |
| EA × SFSb | 0.792 | |||||||
| Middle-aged adults (n = 2,998) | ||||||||
| Socioeconomic status | ||||||||
| EA | Higher | Lower | 1.14 | 1.95–1.23 | 0.001 | 1.17 | 1.06–1.28 | 0.001 |
| SFS | Moderate | Poor | 1.01 | 0.93–1.10 | 0.760 | 1.05 | 0.94–1.16 | 0.382 |
| EA × SFSb | 0.285 | |||||||
| Older adults (n = 3,184) | ||||||||
| Socioeconomic status | ||||||||
| EA | Higher | Lower | 1.14 | 1.00–1.30 | 0.044 | 1.31 | 1.12–1.52 | 0.001 |
| SFS | Moderate | Poor | 1.24 | 1.09–1.43 | 0.002 | 1.76 | 1.43–2.17 | < 0.001 |
| EA × SFSb | < 0.001 | |||||||
Abbreviations: PR, prevalence ratio; CI, confidence interval; EA, educational attainment; SFS, subjective financial status
Bold values denote significant at α = 0.025 (0.05/2) by Bonferroni’s correction adjustment
ª Poisson regression model with robust variance. Dependent variable: low frequency of balanced meal consumption; Independent variable: socioeconomic status; Covariates: sex, age, living arrangement, marital status, current work status, number of comorbidities, K6, and IADL (only for older adults)
b Overall test of interaction