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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Chronobiol Int. 2018 Apr 11;35(8):1045–1053. doi: 10.1080/07420528.2018.1454458

Table 2.

Associations between chronotype and prevalent comorbidities adjusting for age and sex. Chronotype was examined as both an pseudo-continuous 4-level variable and as categorical variables with Definite Morning Type as Referent.

4-level Chronotype Categorical Variables
(1= definite morning type to 4= definite evening type) Definite Morning Type Moderate Morning Types Moderate Evening Types Definite Evening Type
Prevalent Comorbidity OR per level (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
 CVD 1.01 (1.004, 1.02)
p=.002
Ref 0.91 (0.90, 0.93)
p<.001
0.97 (0.95, 0.99)
p=.001
1.07 (1.04, 1.10)
p<.001
 Diabetes 1.06 (1.05, 1.08)
p<.001
Ref 0.82 (0.80, 0.85)
p<.001
0.98 (0.94, 1.01)
p=.20
1.30 (1.24, 1.36)
p<.001
 Neurological 1.06 (1.05, 1.08)
p<.001
Ref 1.02 (1.00, 1.04)
p=.20
1.08 (1.05, 1.11)
p<.001
1.25 (1.20, 1.30)
p<.001
 Endocrine 1.04 (1.03, 1.06)
p<.001
Ref 0.98 (0.95, 1.02)
p=.34
1.04 (1.01, 1.08)
p=.015
1.17 (1.12, 1.23)
p<.001
 Renal 1.02 (1.004, 1.04)
p=.015
Ref 1.01 (0.97, 1.05)
p=.65
1.01 (0.97, 1.05)
p=.58
1.10 (1.04, 1.16)
p=.001
 Respiratory 1.05 (1.04, 1.06)
p<.001
Ref 0.94 (0.92, 0.96)
p<.001
1.03 (1.01, 1.05)
p=.007
1.22 (1.18, 1.26)
p<.001
 Musculoskeletal 1.04 (1.03, 1.05)
p<.001
Ref 0.96 (0.94, 0.98)
p<.001
1.05 (1.03, 1.07)
p<.001
1.14 (1.11, 1.18)
p<.001
 Gastrointestinal/abdominal 1.07 (1.06, 1.08)
p<.001
Ref 1.00 (0.98, 1.02)
p=1.0
1.12 (1.09, 1.14)
p<.001
1.23 (1.19, 1.27)
p<.001
 Psychological 1.25 (1.23, 1.26)
p<.001
Ref 1.07 (1.04, 1.11)
p<.001
1.44 (1.40, 1.49)
p<.001
1.94 (1.86, 2.02)
p<.001