Table 2.
Generalized linear mixed models for the frequency of food intake, 2020, Japana.
| Vegetables |
Fruits |
Beans |
Mushrooms |
Seaweeds |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | ||||||
| Declaration period | 1.06 | 1.05 | 1.07 | 1.01 | 0.99 | 1.03 | 1.05 | 1.03 | 1.06 | 1.02 | 0.999 | 1.04 | 1.09 | 1.06 | 1.11 |
| Working from home | 1.02 | 1.004 | 1.03 | 1.06 | 1.03 | 1.09 | 1.01 | 0.99 | 1.03 | 1.02 | 0.99 | 1.05 | 0.94 | 0.91 | 0.97 |
| Employment status b | |||||||||||||||
| Self-employed | 0.97 | 0.90 | 1.04 | 0.82 | 0.70 | 0.97 | 1.07 | 0.97 | 1.18 | 1.08 | 0.99 | 1.19 | 1.01 | 0.90 | 1.13 |
| Manager | 0.97 | 0.92 | 1.03 | 0.73 | 0.65 | 0.83 | 0.98 | 0.91 | 1.05 | 1.01 | 0.95 | 1.09 | 1.05 | 0.96 | 1.14 |
| Non-management worker | 0.96 | 0.91 | 0.997 | 0.67 | 0.61 | 0.74 | 0.95 | 0.90 | 1.01 | 0.99 | 0.94 | 1.05 | 0.99 | 0.92 | 1.06 |
| Irregular worker | 0.93 | 0.89 | 0.97 | 0.70 | 0.63 | 0.77 | 0.94 | 0.89 | 1.005 | 0.94 | 0.89 | 0.99 | 0.97 | 0.90 | 1.04 |
| Working hours | 1.00 | 0.996 | 1.002 | 1.00 | 0.99 | 1.005 | 1.00 | 0.997 | 1.005 | 1.00 | 0.995 | 1.004 | 1.00 | 0.999 | 1.01 |
| Childcare | 0.99 | 0.99 | 0.996 | 0.98 | 0.97 | 0.99 | 1.00 | 0.99 | 1.005 | 1.00 | 0.99 | 1.01 | 1.00 | 0.996 | 1.01 |
| Housework | 1.00 | 0.99 | 1.01 | 1.00 | 0.99 | 1.01 | 1.02 | 1.01 | 1.03 | 1.01 | 1.003 | 1.02 | 1.00 | 0.99 | 1.01 |
| Eating | 1.03 | 1.02 | 1.04 | 1.03 | 1.01 | 1.05 | 1.01 | 0.99 | 1.03 | 1.01 | 0.99 | 1.03 | 1.02 | 0.997 | 1.04 |
| Exercise | 1.01 | 1.001 | 1.02 | 1.02 | 1.01 | 1.04 | 1.03 | 1.02 | 1.04 | 1.02 | 1.01 | 1.03 | 1.02 | 1.001 | 1.03 |
| Sleep | 1.00 | 0.99 | 1.01 | 1.02 | 1.004 | 1.03 | 1.00 | 0.99 | 1.01 | 0.99 | 0.98 | 1.01 | 1.00 | 0.99 | 1.01 |
| Depressive symptoms | 0.92 | 0.90 | 0.95 | 0.89 | 0.83 | 0.95 | 0.95 | 0.91 | 0.99 | 0.93 | 0.90 | 0.97 | 0.93 | 0.89 | 0.97 |
| Women | 1.06 | 1.02 | 1.10 | 1.60 | 1.47 | 1.75 | 0.98 | 0.94 | 1.03 | 1.13 | 1.08 | 1.18 | 0.82 | 0.77 | 0.86 |
| Age | 1.003 | 1.002 | 1.004 | 1.01 | 1.01 | 1.01 | 0.999 | 0.997 | 1.001 | 1.00 | 0.998 | 1.001 | 1.004 | 1.002 | 1.01 |
| Offset | 2.94 | 2.91 | 2.97 | 2.95 | 2.89 | 3.01 | 2.86 | 2.82 | 2.90 | 3.06 | 3.01 | 3.12 | 2.96 | 2.90 | 3.02 |
| Constant | 0.96 | 0.87 | 1.06 | 0.11 | 0.09 | 0.13 | 0.51 | 0.45 | 0.59 | 0.25 | 0.21 | 0.28 | 0.19 | 0.16 | 0.23 |
| Fish |
Meats |
Dairy products |
Snacks |
Alcohol |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | ||||||
| Declaration period | 1.03 | 1.01 | 1.05 | 1.02 | 1.01 | 1.04 | 1.07 | 1.05 | 1.09 | 1.04 | 1.03 | 1.06 | 0.94 | 0.89 | 0.99 |
| Working from home | 0.99 | 0.96 | 1.02 | 0.98 | 0.96 | 0.999 | 1.03 | 1.01 | 1.06 | 1.04 | 1.02 | 1.06 | 0.93 | 0.86 | 0.997 |
| Employment status b | |||||||||||||||
| Self-employed | 0.99 | 0.91 | 1.08 | 1.04 | 0.98 | 1.10 | 0.83 | 0.73 | 0.94 | 0.95 | 0.85 | 1.06 | 2.48 | 1.75 | 3.52 |
| Manager | 1.01 | 0.94 | 1.08 | 1.12 | 1.07 | 1.17 | 0.79 | 0.72 | 0.87 | 0.92 | 0.84 | 0.997 | 5.08 | 3.87 | 6.66 |
| Non-management worker | 0.96 | 0.90 | 1.01 | 1.10 | 1.06 | 1.15 | 0.89 | 0.82 | 0.96 | 1.00 | 0.94 | 1.07 | 3.17 | 2.52 | 3.97 |
| Irregular worker | 0.88 | 0.84 | 0.94 | 1.06 | 1.02 | 1.10 | 0.89 | 0.83 | 0.97 | 1.01 | 0.94 | 1.08 | 1.69 | 1.34 | 2.14 |
| Working hours | 1.00 | 0.998 | 1.007 | 1.00 | 0.998 | 1.004 | 1.00 | 0.997 | 1.005 | 0.99 | 0.99 | 0.997 | 0.99 | 0.97 | 1.001 |
| Childcare | 1.00 | 0.997 | 1.01 | 1.01 | 1.01 | 1.02 | 1.00 | 0.99 | 1.004 | 1.00 | 0.996 | 1.01 | 1.00 | 0.97 | 1.03 |
| Housework | 1.00 | 0.99 | 1.01 | 1.00 | 0.996 | 1.01 | 1.00 | 0.99 | 1.01 | 0.99 | 0.98 | 0.995 | 1.01 | 0.97 | 1.04 |
| Eating | 1.03 | 1.01 | 1.05 | 1.01 | 1.001 | 1.03 | 1.02 | 1.005 | 1.04 | 0.99 | 0.98 | 1.01 | 1.20 | 1.13 | 1.27 |
| Exercise | 1.01 | 0.999 | 1.03 | 1.00 | 0.99 | 1.01 | 1.03 | 1.02 | 1.04 | 1.01 | 0.996 | 1.02 | 0.98 | 0.95 | 1.02 |
| Sleep | 1.01 | 0.998 | 1.02 | 1.00 | 0.99 | 1.003 | 1.01 | 0.996 | 1.02 | 0.98 | 0.97 | 0.99 | 1.00 | 0.96 | 1.03 |
| Depressive symptoms | 0.96 | 0.92 | 0.99 | 0.96 | 0.94 | 0.99 | 0.92 | 0.87 | 0.97 | 0.99 | 0.95 | 1.04 | 0.97 | 0.83 | 1.12 |
| Women | 0.92 | 0.88 | 0.97 | 0.83 | 0.80 | 0.85 | 1.16 | 1.09 | 1.24 | 1.83 | 1.73 | 1.94 | 0.32 | 0.27 | 0.38 |
| Age | 1.005 | 1.004 | 1.01 | 0.99 | 0.99 | 0.99 | 1.003 | 1.001 | 1.005 | 0.996 | 0.99 | 0.998 | 1.03 | 1.02 | 1.04 |
| Offset | 2.99 | 2.93 | 3.06 | 2.93 | 2.89 | 2.97 | 2.86 | 2.81 | 2.91 | 2.91 | 2.87 | 2.96 | 2.93 | 2.78 | 3.08 |
| Constant | 0.18 | 0.16 | 0.21 | 0.98 | 0.89 | 1.08 | 0.32 | 0.27 | 0.38 | 0.56 | 0.49 | 0.65 | 0.00 | 0.00 | 0.01 |
abrAbbreviationsIRR, incidence rate ratio; CI, confidence interval.
A Poisson distribution was adopted to the frequency of food intake other than alcohol, while a negative binomial distribution was adopted to the frequency of alcohol intake.
A reference category is "non-worker."