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Table 2 Odds ratio of abnormal ECG findings (the results of multivariate logistic regression analysis)

From: The relationships of sleep duration and mental health with electrocardiographic findings: a retrospective-cohort study in Okinawa, Japan

Factor

n (ECG findings)

OR

95% CI

p

Age

 ≤50

21 (12)

1.00

 50–60

99 (40)

1.59

0.57–4.40

0.368

 60–70

139 (58)

1.46

0.53–4.01

0.461

 >70

59 (18)

2.66

0.87–8.09

0.083

Sex

 Male

105 (33)

1.00

 Female

213 (95)

0.49

0.19–1.26

0.140

BMI

 <25

212 (87)

1.00

 ≥25

106 (41)

1.07

0.63–1.81

0.797

SBP

 <140

188 (80)

1.00

 ≥140

130 (48)

1.06

0.60–1.88

0.825

DBP

 <90

253 (103)

1.00

 ≥90

65 (25)

0.94

0.47–1.90

0.879

TC

 ≤220

212 (85)

1.00

 >220

106 (43)

0.99

0.58–1.68

0.989

HDL-C

 <40

30 (9)

1.23

0.50–3.00

0.640

 ≥40

288 (119)

1.00

TG

 <150

186 (82)

1.00

 ≥150

132 (46)

1.24

0.89–2.46

0.124

CAGEa

 0

227 (96)

1.00

 ≥1

91 (32)

0.67

0.26–1.72

0.411

Sleep (h/day)

 ≤6

91 (32)

1.87

1.02–3.43

0.041*

 7

107 (49)

1.00

 ≥8

120 (47)

1.23

0.70–2.17

0.460

GHQ

 <3

253 (100)

1.00

 ≥3

65 (28)

0.87

0.48–1.56

0.647

Smokingb

 1

284 (119)

1.00

 2

34 (9)

1.75

0.74–4.11

0.196

  1. OR odds ratio, CI confidence interval, BMI body mass index (calculated as weight in kilograms divided by the square of height in meters), SBP systolic blood pressure, DBP diastolic blood pressure, TC total cholesterol, HDL-C high-density lipoprotein cholesterol, TG serum triglyceride, GHQ general health questionnaire
  2. aCAGE, 0 no drinking problem, ≥1 drinking problem
  3. bSmoking, 1 never smoke, quit smoking, 2 smoking
  4. *Significant when p < 0.05