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Table 3 Univariable logistic regression showing the influence of year of training, program type, moonlighting, causes of fatigue, causes of difficulty initiating sleep, and demographics on the odds of using sleep aids either inclusive or exclusive of alcohol.

From: The use of sleep aids among Emergency Medicine residents: a web based survey

  

Odds Ratio

95% confidence interval

Inclusive of alcohol

Year of residency

2nd year v 1st year

0.95

(0.64 – 1.43)

 

3rd year v 1st year

0.99

(0.66 – 1.50)

 

4th year v 1st year

1.48

(0.77 – 2.85)

Type of program

PGY1–4 v PGY1–3

1.72

(1.07 – 2.74)

 

PGY2–4 v PGY1–3

1.23

(0.77 – 1.97)

Moonlighting

Yes v no

0.88

(0.57 – 1.38)

Causes of fatigue

Work hours/demands of work

1.93

(1.22 – 3.05)

 

Work-related emotional stress

2.10

(1.51 – 2.92)

 

Family commitments

1.48

(1.07 – 2.05)

 

Changing circadian rhythms

2.14

(1.32 – 3.47)

Causes of difficulty initiating sleep

Work hours/demands of work

2.29

(1.64 – 3.21)

 

Work-related emotional stress

2.14

(1.54 – 2.98)

 

Family commitments

1.72

(1.19 – 2.49)

 

Changing circadian rhythms

2.61

(1.83 – 3.73)

Sleepiness

ESS 11–16 v ESS 0–10

0.77

(0.55 – 1.08)

 

ESS > 16 v ESS 0–10

0.91

(0.48 – 1.72)

Demographics

Age

0.97

(0.93 – 1.01)

 

Female v Male

1.13

(0.81 – 1.57)

 

White v Black

1.25

(0.50 – 3.11)

 

Asian v Black

1.16

(0.52 – 2.59)

 

Other v Black

1.07

(0.35 – 3.25)

 

Non-Hispanic v Hispanic

1.56

(0.65 – 3.76)

Exclusive of alcohol

   

Year of residency

2nd year v 1st year

1.03

(0.68 – 1.55)

 

3rd year v 1st year

1.16

(0.76 – 1.77)

 

4th year v 1st year

1.50

(0.78 – 2.89)

Type of program

PGY1–4 v PGY1–3

1.79

(1.12 – 2.86)

 

PGY2–4 v PGY1–3

1.35

(0.84 – 2.16)

Moonlighting

Yes v no

0.87

(0.55 – 1.37)

Causes of fatigue

Work hours/demands of work

1.79

(1.11 – 2.89)

 

Work-related emotional stress

1.88

(1.34 – 2.64)

 

Family commitments

1.50

(1.08 – 2.10)

 

Changing circadian rhythms

1.82

(1.10 – 3.00)

Causes of difficulty initiating sleep

Work hours/demands of work

2.10

(1.50 – 2.95)

 

Work-related emotional stress

1.88

(1.34 – 2.62)

 

Family commitments

1.72

(1.19 – 2.49)

 

Changing circadian rhythms

2.43

(1.68 – 3.53)

Sleepiness

ESS 11–16 ESS 0–10

0.80

(0.56 – 1.13)

 

ESS > 16 ESS 0–10

0.94

(0.49 – 1.80)

Demographics

Age

0.97

(0.93 – 1.02)

 

Female v Male

1.38

(0.98 – 1.93)

 

White v Black

2.70

(0.96 – 7.58)

 

Asian v Black

2.09

(0.82 – 5.31)

 

Other v Black

2.22

(0.66 – 7.48)

 

Non-Hispanic v Hispanic

1.42

(0.57 – 3.51)