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Table 5 Odds ratios (95% confidence intervals) for anya and frequentb cannabis use according to cumulative number of sociodemographic adversitiesc in the different study years, among boys and girls in the 8th or 9th grades of comprehensive school in Finland

From: Changes in cannabis use according to socioeconomic status among Finnish adolescents from 2000 to 2015

 

2000–2001

2002–2003

2004–2005

2006–2007

2008–2009

2010–2011

2012–2013

2014–2015

Boys, any cannabis use

 Number of adversities

  0

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

  1

1.4 (1.3–1.6)

1.6 (1.5–1.7)

1.7 (1.6–1.8)

1.8 (1.6–1.9)

1.7 (1.5–1.8)

1.6 (1.5–1.8)

1.7 (1.6–1.9)

1.9 (1.7–2.1)

  2

2.5 (2.3–2.7)

2.9 (2.7–3.2)

2.7 (2.4–3.0)

3.4 (3.1–3.8)

2.8 (2.5–3.1)

2.9 (2.6–3.1)

2.9 (2.6–3.2)

2.9 (2.6–3.3)

  3

3.6 (3.0–4.3)

4.8 (4.1–5.7)

6.2 (5.2–7.3)

8.4 (7.0–10.0)

8.0 (6.7–9.5)

5.7 (4.9–6.7)

5.6 (4.8–6.5)

6.2 (5.0–7.6)

  4

12.0 (8.2–17.6)

20.7 (14.5–29.5)

27.6 (19.0–39.9)

46.6 (32.4–67.2)

54.2 (37.4–78.4)

40.2 (28.9–56.0)

23.9 (18.2–31.5)

51.4 (36.6–72.0)

Girls, any cannabis use

 Number of adversities

  0

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

  1

1.5 (1.3–1.6)

1.6 (1.4–1.7)

1.9 (1.7–2.0)

2.0 (1.8–2.2)

1.8 (1.6–1.9)

1.7 (1.6–1.9)

2.0 (1.8–2.2)

2.3 (2.0–2.6)

  2

2.3 (2.1–2.6)

2.5 (2.2–2.7)

3.0 (2.7–3.4)

3.6 (3.2–4.0)

3.2 (2.8–3.6)

3.1 (2.8–3.4)

3.3 (3.0–3.7)

4.0 (3.4–4.6)

  3

2.7 (2.2–3.2)

3.5 (2.9–4.2)

4.4 (3.6–5.4)

6.0 (4.9–7.4)

5.5 (4.5–6.9)

3.9 (3.2–4.7)

4.4 (3.7–5.3)

6.9 (5.5–8.7)

  4

4.6 (2.8–7.7)

8.1 (5.2–12.6)

20.4 (13.4–31.1)

21.8 (14.5–33.0)

31.6 (21.3–46.9)

23.3 (17.0–32.0)

21.0 (15.4–28.6)

36.6 (23.9–55.9)

Boys, frequent cannabis use

 Number of adversities

  0

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

  1

1.5 (1.3–1.7)

1.7 (1.5–1.9)

1.6 (1.4–1.8)

1.8 (1.6–2.1)

1.6 (1.4–1.9)

1.6 (1.4–1.8)

1.9 (1.6–2.1)

2.1 (1.8–2.5)

  2

2.9 (2.5–3.4)

3.3 (2.8–3.8)

2.7 (2.2–3.2)

4.2 (3.6–5.1)

3.2 (2.7–3.9)

3.1 (2.7–3.6)

3.3 (2.9–3.9)

3.3 (2.8–4.0)

  3

6.3 (5.0–8.0)

7.6 (6.1–9.4)

10.0 (8.0–12.5)

15.6 (12.4–19.7)

14.5 (11.5–18.3)

8.9 (7.3–11.0)

8.9 (7.2–11.0)

7.3 (5.6–9.6)

  4

29.5 (19.7–44.2)

41.8 (29.2–59.8)

54.3 (37.3–79.1)

105.3 (73.5–150.9)

131.7 (92.2–188.2)

74.5 (54.4–102.0)

62.9 (47.5–83.4)

107.3 (76.8–150.0)

Girls, frequent cannabis use

 Number of adversities

  0

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

  1

1.8 (1.5–2.1)

1.6 (1.3–1.9)

2.5 (2.0–3.1)

2.4 (1.9–3.0)

1.8 (1.5–2.3)

2.0 (1.7–2.5)

2.5 (2.0–3.0)

3.0 (2.3–3.9)

  2

2.9 (2.4–3.6)

3.2 (2.6–3.9)

4.0 (3.2–5.0)

5.0 (3.9–6.3)

3.4 (2.6–4.4)

3.9 (3.1–4.9)

5.0 (4.0–6.2)

5.8 (4.5–7.6)

  3

3.6 (2.6–5.2)

6.2 (4.6–8.3)

9.0 (6.4–12.5)

12.5 (8.9–17.7)

10.3 (7.2–14.6)

8.1 (5.9–11.1)

8.8 (6.5–12.0)

10.8 (7.5–15.4)

  4

7.9 (3.6–17.4)

18.6 (10.5–32.7)

81.0 (50.9–129.0)

77.1 (48.1–123.7)

111.6 (72.7–171.5)

89.1 (62.4–127.1)

66.4 (46.2–95.4)

101.9 (64.1–162.3)

  1. aUsed cannabis at least once in one’s lifetime
  2. bUsed cannabis at least five times in one’s lifetime
  3. cSocioeconomic adversities included not living with both parents, both parents with basic education only, and both parents unemployed. Adolescents living with both parents, with at least one parent with higher than basic education and both parents employed used as a reference group