Relationship of being threatened or injured with a weapon in school with suicidal ideation and attempt among school students: a school-based study in Zhejiang Province, China

Table 3 Weighted prevalence of being threatened or injured with a weapon in school by different subgroups

Characteristics	Overall			Boys			Girls
Characteristics	Prevalence (95%CI)^a	x²	P value	Prevalence (95%CI)^a	x²	P value	Prevalence (95%CI)^a	x²	P value
Age range (years)		289.5^c	<.0001		154.3^c	<.0001		135.0^c	<.0001
≤ 13	19.2 (15.9–22.4)			22.5 (18.8–26.2)			15.5 (12.2–18.8)
14–15	14.5 (12.4–16.5)			17.0 (14.9–19.1)			11.7 (9.5–13.9)
≥ 16	9.4 (8.4–10.4)			11.5 (10.2–12.8)			7.1 (5.8–8.5)
Area		3.95^b	0.04		1.76^b	0.18		5.5^b	0.02
Urban	11.6 (10.3–12.9)			14.5 (12.9–16.1)			8.6 (7.1–10.0)
Rural	13.9 (12.1–15.8)			16.3 (14.2–18.3)			11.3 (9.5–13.2)
Types of school		76.5^b	<.0001		64.0^b	<.0001		32.6^b	<.0001
Middle school	16.7 (14.6–18.7)			19.6 (17.3–21.8)			13.4 (11.3–15.6)
Academic high school	8.2 (7.0–9.4)			10.3 (8.7–11.9)			6.2 (4.9–7.5)
Vocational high school	10.9 (9.2–12.6)			12.8 (10.9–14.8)			8.7 (6.2–11.3)

^aBased on the weighted data. ^b: Rao-Scott Chi-Square, ^c:Trend for Chi-Square, CI Confidence Interval

ISSN: 1471-2458