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Table 4 Multiple linear regression analysis adjusting for variables affecting quality of life (EQ-5D index)

From: Self-perceived sleepiness in emergency training physicians: prevalence and relationship with quality of life

Variables

EQ - 5D index

β

95% CI

P

Marital status

   

Married

0

---

---

Unmarried

−0.2

−0.36; -0.02

0.02

Exercice

   

Yes

0

---

 

No

−0.2

−0.39; 0.006

0.04

Sleep characteristics

   

Shift- off sleep hour

   

≤4 h

−0.6

−1.06; -0.1

0.01

4-6 h

−0.13

−0.24; -0.02

0.02

>6 h

0

---

---

Self perceived sleepiness

   

No sleepiness

0

---

---

Excessive sleepiness

0.06

−0.07; 0.2

0.3

Severe sleepiness

−0.2

−0.38; -0.2

0.02

  1. EQ-5D Euroqol 5 dimension, CI confidence interval. β: β coefficient from the multivariate lineal regression, after adjustment by all relevant variables. Positive values indicate better quality of life on that domain for that category; negative values indicate poorer quality of life compared with the reference category. 0 indicated reference.