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

Table 3 Odds ratio of abnormal ECG findings for subjects with GHQ ≥3 and subjects with GHQ <3 (the results of multivariate logistic regression analysis)

Factor	n (ECG findings)	OR	95% CI	p
GHQ ≥ 3
Sleep (h/day)
≤6	23 (7)	7.14	1.24–41.12	0.028*
7	18 (11)	1.00	–	–
≥8	24 (10)	2.81	0.58–13.46	0.197
GHQ < 3
Sleep (h/day)
≤6	96 (37)	1.454	0.736–2.872	0.282
7	68 (25)	1.00	–	–
≥8	89 (38)	1.039	0.736–1.965	0.907

OR odds ratio, CI confidence interval. Factors adjusted: 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
CAGE, 0 no drinking problem, ≥1 drinking problem
Smoking, 1 never smoke, quit smoking, 2 smoking
*Significant when p < 0.05

ISSN: 1347-4715