Table 3 Crude and adjusted odds ratios and 95% confidence intervals of poor sleep among adolescents.

From: The prevalences of and association between nonmedical prescription opioid use and poor sleep among Chinese high school students

Variables

OR

95% CI

AOR

95% CI

Past-month NMPOU

 No

1.00

 

1.00

 

 Yes

2.09

1.71–2.56

1.47

1.17–1.85

Gender

 Girls

1.00

   

 Boys

0.83

0.77–0.90

  

Age (years)

 11–13

1.00

   

 14–16

1.55

1.35–1.79

  

 17–20

1.66

1.40–1.96

  

Grade

 7th-9th

1.00

   

 10th-12th

1.87

1.42–2.46

  

Living arrangement

 Two biological parents

1.00

   

 Only father or mother

1.14

1.02–1.27

  

 Others

1.16

1.06–1.27

  

Family economic status

 Above average

1.00

   

 Average

1.17

1.01–1.35

  

 Below average

1.61

1.38–1.87

  

Brothers and sisters

 None

1.00

   

 ≥1

1.04

0.95–1.14

  

Academic pressure

 Above average

1.00

   

 Average

0.93

0.81–1.06

  

 Below average

2.08

1.82–2.37

  

Academic achievement

 Above average

1.00

   

 Average

1.18

1.07–1.30

  

 Below average

1.52

1.38–1.67

  

Smoking habits

 No

1.00

   

 Yes

2.03

1.80–2.29

  

Drinking habits

 No

    

 Yes

1.89

1.74–2.06

  

Exercise

 0 days

1.00

   

 1–2 days

0.57

0.52–0.62

  

 3–4 days

0.49

0.44–0.56

  

 5–7 days

0.56

0.50–0.64

  

Depressive symptoms

 No

1.00

   

 Yes

8.03

7.21–8.95

  

Loneliness

 Less than 1 day/week

1.00

   

 1 to 4 days/week

2.45

2.25–2.67

  

 More than 4 days/week

5.15

4.60–5.76

  

Suicide ideation

 Never

1.00

   

 Occasionally (1–2 times/year)

2.71

2.47–2.98

  

 Sometimes (3–6 times/year)

4.54

3.78–5.46

  

 Often (>6 times/year)

8.27

6.73–10.15

  
  1. Bold type indicates that the CI does not include the null according to logistic regression analyses.
  2. OR, odds ratio by univariate logistic regression; AOR, adjusted odds ratio by multilevel multivariate logistic regression; NMPOU, nonmedical prescription opioid use.