TABLE 4.

Prevalence ratios (95% CI’s) for marijuana by year.^a

	2011	2013	2015	2017
Seriously considered suicide
1–2 days	1.41 (1.29–1.54)	1.35 (1.26–1.44)	1.29 (1.20–1.39)	1.23 (1.10–1.38)
3–9 days	1.47 (1.27–1.70)	1.41 (1.28–1.55)	1.35 (1.24–1.38)	1.30 (1.14–1.48)
10–19 days	1.45 (1.23–1.70)	1.40 (1.25–1.57)	1.35 (1.18–1.54)	1.31 (1.06–1.60)
20+ days	1.73 (1.55–1.92)	1.59 (1.49–1.71)	1.47 (1.35–1.60)	1.36 (1.19–1.55)
Planned suicide
1–2 days	1.39 (1.20–1.61)	1.41 (1.28–1.56)	1.44 (1.30–1.59)	1.46 (1.25–1.70)
3–9 days	1.63 (1.40–1.90)	1.51 (1.36–1.68)	1.39 (1.23–1.58)	1.29 (1.06–1.56)
10–19 days	1.40 (1.14–1.72)	1.46 (1.28–1.68)	1.54 (1.34–1.76)	1.61 (1.32–1.95)
20+ days	1.79 (1.61–2.00)	1.67 (1.55–1.80)	1.56 (1.42–1.72)	1.46 (1.25–1.70)
Attempted suicide
1–2 days	1.60 (1.31–1.95)	1.63 (1.43–1.85)	1.66 (1.44–1.90)	1.69 (1.36–2.08)
3–9 days	2.28 (1.86–2.79)	2.17 (1.88–2.50)	2.06 (1.79–2.38)	1.96 (1.59–2.42)
10–19 days	2.56 (2.06–3.19)	2.24 (1.91–2.63)	1.94 (1.57–2.40)	1.68 (1.20–2.36)
20+ days	3.21 (2.77–3.71)	2.80 (2.54–3.01)	2.43 (2.12–2.79)	2.10 (1.67–2.65)
Attempt requiring medical attention
1–2 days	1.59 (1.07–2.36)	1.80 (1.39–2.35)	2.04 (1.56–2.62)	2.31 (1.61–3.30)
3–9 days	2.95 (1.96–4.45)	2.67 (2.04–3.49)	2.41 (1.86–3.13)	2.18 (1.47–3.24)
10–19 days	4.26 (2.99–6.06)	3.41 (2.61–4.46)	2.73 (1.98–3.76)	2.17 (1.34–3.50)
20+ days	5.97 (4.32–8.25)	4.94 (3.94–6.20)	4.07 (3.21–5.17)	3.35 (2.34–4.77)

^aControlling for sex, race/ethnicity, grade, bullying, and depressed mood