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Table 3 Bivariate analyses between participants’ characteristics, sleep quality and Framingham 10-year risk score (n = 154)

From: Relationship between sleep quality and cardiovascular disease risk in Chinese post-menopausal women

Participants’ characteristics

Statistical values

p-value

Categorical variablesa

t/F

 

 Marital status

t = 0.076

0.783

 Educational level

F = 0.242

0.786

 Employment status

t = 6.414

0.012

 Physical exercise habit

t = 0.127

0.722

 Current drinker

t = 1.561

0.722

Continuous variablesb

r

 

 Subjective sleep quality

0.138

0.087

 Sleep latency

0.103

0.203

 Sleep duration

0.106

0.191

 Habitual sleep efficiency

0.077

0.343

 Sleep disturbance

0.264

0.001

 Sleep medication

0.006

0.936

 Daytime dysfunction

0.021

0.800

 Global PSQI score

0.124

0.126

  1. aExamined by independent t-test or one way analysis of variance
  2. bExamined by Person correlation analyses. PSQI: Pittsburgh sleep quality index