Table 1.
Cohort Demographics
| Non-Standard Shift Workers n=182 |
Standard Shift Workers n=494 |
p-value | |
|---|---|---|---|
| Age (mean±SD) | 41.5±10.8 | 46.4±14.7 | 0.00 |
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| Comorbidities (n(%)) | |||
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| Diabetes without neuropathy, retinopathy, or nephropathy | 4 (2.2 %) | 13 (2.63 %) | 1.00 |
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| Diabetes with neuropathy, retinopathy, or nephropathy | 2 (1.10 %) | 7 (1.42 %) | 1.00 |
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| Heart attack (MI) | 0 (0.00 %) | 7 (1.42 %) | 0.20 |
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| Congestive heart failure (CHF) | 1 (0.55 %) | 3 (0.61 %) | 1.00 |
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| Chronic obstructive pulmonary disease | 0 (0.00 %) | 2 (0.40 %) | 1.00 |
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| Connective tissue disease | 0 (0.00 %) | 1 (0.20 %) | 1.00 |
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| Transient ischemic attack | 1 (0.55 %) | 2 (0.40 %) | 1.00 |
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| Stroke (with residual symptoms) | 0 (0.00 %) | 0 (0.00 %) | 1.00 |
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| Peripheral vascular disease | 0 (0.00 %) | 0 (0.00 %) | 1.00 |
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| Dementia | 0 (0.00 %) | 0 (0.00 %) | 1.00 |
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| Chronic kidney disease | 1 (0.55 %) | 2 (0.40 %) | 1.00 |
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| Cancer (excluding leukemia/lymphoma or other blood cancers) | 7 (3.85 %) | 49 (9.92 %) | 0.01 |
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| Leukemia/Lymphoma | 3 (1.65 %) | 3 (0.61 %) | 0.35 |
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| Deep venous thrombosis (DVT) | 1 (0.55 %) | 2 (0.40 %) | 1.00 |
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| Liver disease | 3 (1.65 %) | 3 (0.61 %) | 0.35 |
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| Peptic ulcer disease | 2 (1.10 %) | 3 (0.61 %) | 0.62 |
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| AIDS (not HIV) | 1 (0.55 %) | 1 (0.20 %) | 0.47 |
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| None | 162 (89.0 %) | 409 (82.80 %) | 0.06 |