Table 3.
Sleep quality according to categories of dietary patterns among 4,476 Mexican teachers.
| Quartiles of Dietary Patterns | PSQI Score | Adjusted Prevalence Ratio of Poor Quality Sleep (95% CI) | ||
|---|---|---|---|---|
| Average ± SD | Percentage with poor quality sleep (PSQI > 5) | Adjusted for age and sociodemographic characteristics | Adjusted for sociodemographic, lifestyle and comorbidities | |
| Fruits and vegetables | ||||
| Q1 | 5.18 ± 2.86 | 37.7 | 1.22 (1.06, 1.42) | 1.21 (1.04, 1.40) |
| Q2 | 4.96 ± 2.86 | 35.1 | 1.14 (0.99, 1.32) | 1.15 (0.99, 1.33) |
| Q3 | 4.80 ± 2.92 | 33.7 | 1.10 (0.95, 1.28) | 1.11 (0.96, 1.29) |
| Q4 (healthiest) | 4.52 ± 2.81 | 30.4 | 1.00 | 1.00 |
| Western | ||||
| Q1 (healthiest) | 4.70 ± 2.80 | 32.5 | 1.00 | 1.00 |
| Q2 | 4.88 ± 2.85 | 35.3 | 1.12 (0.97, 1.29) | 1.12 (0.97, 1.30) |
| Q3 | 4.88 ± 2.92 | 33.4 | 1.07 (0.92, 1.24) | 1.07 (0.92, 1.24) |
| Q4 | 5.01 ± 2.92 | 35.7 | 1.16 (1.00, 1.35) | 1.16 (1.00, 1.25) |
| Modern Mexican | ||||
| Q1 (healthiest) | 4.65 ± 2.94 | 30.7 | 1.00 | 1.00 |
| Q2 | 4.73 ± 2.88 | 31.9 | 1.03 (0.89, 1.20) | 1.01 (0.87, 1.18) |
| Q3 | 4.89 ± 2.77 | 35.5 | 1.15 (0.99, 1.33) | 1.12 (0.97, 1.30) |
| Q4 | 5.21 ± 2.87 | 38.9 | 1.28 (1.11, 1.48) | 1.23 (1.06, 1.43) |
aFrom modified Poisson models with poor quality sleep (> 5 PSQI score) as a dichotomous outcome and indicator variables for quartiles of dietary patterns (mutually adjusted for each other). bAdjusted for continuous age, indigenous language spoken, state (indicator variables), graduate education, number of assets (continuous), health insurance (private, public, other), menopause (premenopausal, postmenopausal, and unknown). cAdjusted for all covariates listed above as well as Type 2 diabetes, hypertension, hypercholesterolemia, body mass index (continuous), smoking (never, past, current), physical activity (continuous), and depression. *Confidence interval (CI) does not encompass null value (1.00). PSQI = Pittsburgh Sleep Quality Index, Q = quartile.