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. Author manuscript; available in PMC: 2017 Sep 3.
Published in final edited form as: Sleep Med. 2016 Sep 3;25:78–86. doi: 10.1016/j.sleep.2016.08.009

Table 3.

Associations between periodic limb movements and incident self-reported atrial fibrillation

Odds Ratio (95% Confidence Interval)
Predictor N(%) Events Unadjusted Multivariable Adjusted*
Periodic Limb Movement Index
 <5 (n=258) 21 (8.14) 1.00 (reference) 1.00 (reference)
 5 to <30 (n=237) 22 (9.28) 1.16 (0.62, 2.16) 1.05 (0.53, 2.07)
 30+ (n=348) 42 (12.07) 1.55 (0.89, 2.69) 1.55 (0.84, 2.84)
p-trend across categories 0.11 0.13
Periodic Limb Movement Arousal Index
 <1 (n=350) 29 (8.29) 1.00 (reference) 1.00 (reference)
 1 to <5 (n=273) 33 (12.09) 1.52 (0.90, 2.58) 1.55 (0.88, 2.72)
 5+ (n=213) 23 (10.80) 1.34 (0.75, 2.38) 1.02 (0.52, 1.97)
p-trend across categories 0.26 0.78
*

Adjusted for clinic, age, race, body mass index, self-reported medical history (hypertension, diabetes mellitus, cardiovascular disease, stroke, and heart failure), cardiovascular medication use, pacemaker placement, alcohol use, estimated glomerular filtration rate, cholesterol, and apnea-hypopnea index.