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Table 5 Subgroup analysis of age, sleep quality, atherosclerosis and TC of participants with different education levels

From: Preoperative assessment of cognitive function and risk assessment of cognitive impairment in elderly patients with orthopedics: a cross-sectional study

Variables Illiterate Primary school Middle school or above Statistical values P
Age (yr), median (IQR) 70 (67, 76) 70 (68, 75) 71 (68, 76) 1.561a 0.458
Subjective sleep disorders, n (%) 28 (35.1) 46 (26.3) 29 (26.4) 0.900a 0.638
Atherosclerosis, n (%) 20 (22.5) 32 (18.3) 27 (24.5) 1.716a 0.424
TC (mmol/L, mean ± SD) 4.28 ± 1.01 4.4 ± 0.88 4.14 ± 1.08 2.382b 0.094
  1. SD Standard deviation, IQR Interquartile range, TC Total cholesterol
  2. aχ2 values; bF values
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BMC Anesthesiology

ISSN: 1471-2253

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