TABLE 4.
OR (95% CI) from crude and adjusted associations between sleep measures and exposures (IDVDD and IDVDI)1
| IDVDD |
IDVDI |
|||||||
|---|---|---|---|---|---|---|---|---|
| Both | Only VDD | Only ID | None | Both | Only VDI | Only ID | None | |
| Short sleep duration | ||||||||
| Crude | 1.84 (1.34, 2.54) | 1.73 (1.36, 2.20) | 1.20 (0.96, 1.50) | Ref | 1.81 (1.40, 2.34) | 1.52 (1.30, 1.76) | 1.11 (0.82, 1,49) | Ref |
| Adjusted | 1.27 (0.92, 1.75) | 1.29 (1.01, 1.64) | 1.13 (0.90, 1.42) | Ref | 1.31 (1.00, 1.75) | 1.22 (1.04, 1.45) | 1.12 (0.83, 1.52) | Ref |
| Prolonged sleep latency | ||||||||
| Crude | 1.19 (0.55, 2.60) | 1.24 (0.94, 1.64) | 1.13 (0.75, 1.69) | Ref | 1.21 (0.74, 1.99) | 1.24 (0.97, 1.59) | 1.18 (0.65, 2.15) | Ref |
| Adjusted | 0.82 (0.38, 1.77) | 0.95 (0.66, 1.35) | 1.03 (0.69, 1.56) | Ref | 0.79 (0.44, 1.43) | 0.94 (0.69, 1.28) | 1.19 (0.65, 2.21) | Ref |
| Poor sleep quality | ||||||||
| Crude | 1.85 (1.09, 3.14) | 0.80 (0.59, 1.09) | 1.14 (0.82, 1.57) | Ref | 1.32 (0.91, 1.92) | 0.87 (0.70, 1.08) | 1.08 (0.69, 1.68) | Ref |
| Adjusted | 1.98 (1.04, 3.77) | 0.90 (0.64, 1.25) | 1.31 (0.95, 1.83) | Ref | 1.53 (0.96, 2.43) | 0.96 (0.73, 1.28) | 1.27 (0.80, 2.00) | Ref |
Abbreviations: CI, confidence interval; ID, iron deficiency; IDA, iron deficiency anemia; IDVDD, iron deficiency and vitamin D deficiency; IDVDI, iron deficiency and vitamin D inadequacy; OR: odds ratio.
1
Adjusted for age, race/ethnicity, poverty–income ratio, educational level, smoking, alcohol, physical activity, sedentary time, diabetes, kidney disease, season, marital status, body mass index, depression, hypertension, and vitamin D method indicator.