Trends in suicide by hanging, strangulation, and suffocation in Serbia, 1991-2020: A joinpoint regression and age-period-cohort analysis

Table 4 Age, period, and cohort effects on suicide mortality by hanging/strangulation/suffocation in Serbia, by sexes, 1991-2020

Group		Males		Females
		Effect	95%CI	Effect	95%CI
Age	10-14	1.7	0.9–3.1	0.8	0.2–3.1
	15-19	4.4	3.0–6.4	1.6	0.7–3.6
	20-24	8.4	6.3–11.3	2.9	1.6–5.2
	25-29	9.3	7.1–12.1	3.1	1.8–5.2
	30-34	10.8	8.7–13.5	3.7	2.5–5.5
	35-39	12.7	10.5–15.4	4.2	2.9–5.9
	40-44	15.3	12.9–18.2	4.2	3.1–5.9
	45-49	17.4	14.8–20.5	5.1	3.7–6.9
	50-54	21.1	17.1–23.7	5.2	3.8–7.1
	55-59	21.5	17.3–24.3	5.2	3.7–7.1
	60-64	21.4	17.7–25.8	5.2	3.7–7.3
	65-69	21.2	17.3–25.9	5.3	3.7–7.6
	70-74	25.1	20.3–31.0	5.5	3.8–8.0
	75-79	30.8	24.5–38.5	5.7	3.9–8.4
Period	1991-1995	1.1	0.9–1.2	1.3	1.1–1.7
	1996-2000	1.0	0.9–1.2	1.2	1.0–1.5
	2001-2005	1.0	1.0–1.0	1.0	1.0–1.0
	2006-2010	1.0	0.9–1.1	0.9	0.7–1.1
	2011-2015	0.9	0.8–1.0	0.7	0.5–0.9
	2016-2020	0.7	0.6–0.8	0.5	0.4–0.7
Cohort	1916–1920	2.9	2.0–4.3	6.4	3.6–11.3
	1921–1925	2.2	1.7–2.9	4.5	2.9–7.0
	1926–1930	1.9	1.5–2.4	3.3	2.2–4.9
	1931–1935	1.7	1.4–2.1	2.7	1.9–3.9
	1936–1940	1.4	1.2–1.7	2.3	1.6–3.3
	1941–1945	1.2	1.0–1.5	1.9	1.3–2.6
	1946–1950	1.1	0.9–1.3	1.4	1.0–2.0
	1951–1955	1.1	0.9–1.3	1.1	0.8–1.5
	1956–1960	1.1	0.9–1.3	1.1	0.8–1.6
	1961–1965	1.0	1.0–1.0	1.0	1.0–1.0
	1966–1970	0.9	0.8–1.1	0.8	0.5–1.2
	1971–1975	0.9	0.8–1.2	0.6	0.4–0.9
	1976–1980	0.9	0.7–1.1	0.7	0.4–1.1
	1981–1985	0.9	0.7–1.2	0.6	0.4–1.0
	1986–1990	0.8	0.6–1.1	0.4	0.2–0.8
	1991–1995	0.7	0.4–1.0	0.5	0.2–1.1
	1996–2000	0.7	0.4–1.1	0.2	0.1–1.0
	2001–2005	0.6	0.3–1.5	0.1	0.0–4.7
	2006–2010	0.4	0.0–2.9	0.1	0.0–49.4
		Wald Chi-square tests for estimable functions, P value
Net drift		< 0.000		< 0.000
All period rate ratios		< 0.000		< 0.000
All cohort rate ratios		< 0.000		< 0.000
All local drifts		0.092		0.897

CI: Confidence interval.