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Table 6 Multivariate logistic regression analysis of factors influencing poor sleep (PSQI > 5) among the TMD patients

From: Poorer sleep quality in patients with chronic temporomandibular disorders compared to healthy controls

  PSQI (≤5)
(n = 217)
PSQI (> 5)
(n = 286)
p-value OR 95% Confidential interval
Parameter n (%) n (%) Lower Upper
Age [ref. = under average value] 56 (25.8) 141 (49.3) <0.001*** 2.551 1.662 3.917
Female [ref. = male] 124 (57.1) 209 (73.1) 0.007** 1.885 1.193 2.978
BMI [ref. = under average value] 90 (41.5) 139 (48.6) 0.146 1.353 0.900 2.036
VAS [ref. = under average value] 121 (55.8) 168 (58.7) 0.951 1.012 0.685 1.495
Duration [ref. = under average value] 61 (28.1) 73 (25.5) 0.711 0.922 0.600 1.418
Myofascial pain by RDC/TMD [ref. = none] 197 (90.8) 268 (93.7) 0.762 1.125 0.523 2.423
Disc displacement by RDC/TMD [ref. = none] 119 (54.8) 159 (55.6) 0.453 0.829 0.508 1.353
Arthralgia by RDC/TMD [ref. = none] 152 (70.0) 203 (71.0) 0.930 0.976 0.576 1.655
Headache attributed to TMD by DC/TMD 107 (49.3) 178 (62.2) 0.049* 1.519 1.000 2.308
STOP-Bang [ref. < 3] 31 (14.3) 50 (17.5) 0.868 1.051 0.584 1.891
ESS [ref. < 10] 34 (15.7) 65 (22.7) 0.014* 1.839 1.130 2.993
  1. OR Odds ratio, CI Confidential interval, ESS Epworth sleepiness scale. Multivariate logistic regression analysis was performed to comprehensively examine the factors affecting poor sleep in chronic TMD patients (R = 0.833, R square = 0.787). For obtaining significant results, two-tailed level of statistical significance of a p-value was set at less than 0.05