TABLE 1.

Sample description and single analysis between social-demographic variables, carbon monoxide poisoning and suicidal ideation/suicide plan (Hebei, China. 2018).

Variables	Total	Suicidal ideation		t/ ${\chi }^2$	Suicide plan		t/ ${\chi }^2$
		Yes, n (%)	No, n (%)		Yes, n (%)	No, n (%)
All	21,376 (100.0)	289 (1.4)	21,087 (98.6)	—	67 (0.3)	21,309 (99.7)	—
Gender				33.93***			1.41
Male	9,839 (46.0)	84 (0.9)	9,755 (99.1)		26 (0.3)	9,813 (99.7)
Female	11,537 (54.0)	205 (1.8)	11,332 (98.2)		41 (0.4)	11,496 (99.6)
Age (yr, mean ± SD)	50.85 ± 16.30	56.10 ± 14.50	50.78 ± 16.31	5.51***	56.22 ± 14.48	50.84 ± 16.30	2.20*
Ethnicity				0.34			2.36
Hans	20,094 (94.0)	274 (1.4)	19,820 (98.6)		60 (0.3)	20,034 (99.7)
Others	1,282 (6.0)	15 (1.2)	1,267 (98.8)		7 (0.5)	1,275 (99.5)
Education				33.57***			7.10
Less than elementary	2,691 (12.6)	55 (2.0)	2,636 (98.0)		9 (0.3)	2,682 (99.7)
Elementary	5,264 (24.6)	96 (1.8)	5,168 (98.2)		25 (0.5)	5,239 (99.5)
Middle school	8,274 (38.7)	99 (1.2)	8,175 (98.8)		23 (0.3)	8,251 (99.7)
High school or above	5,147 (24.1)	39 (0.8)	5,108 (99.2)		10 (0.2)	5,137 (99.8)
Married Status				48.09***			6.35*
Unmarried	1,548 (7.2)	13 (0.8)	1,535 (99.2)		3 (0.2)	1,545 (99.8)
Married	18,487 (86.5)	230 (1.2)	18,257 (98.8)		55 (0.3)	18,432 (99.7)
Others	1,341 (6.3)	46 (3.4)	1,295 (96.6)		9 (0.7)	1,332 (99.3)
Region				1.55			1.31
Urban	5,100 (23.9)	60 (1.2)	5,040 (98.8)		12 (0.2)	5,088 (99.8)
Rural	16,276 (76.1)	229 (1.4)	16,047 (98.6)		55 (0.3)	16,221 (99.7)
Living alone				31.84***			1.45
Yes	1,193 (94.4)	38 (3.2)	1,155 (96.8)		6 (0.5)	1,187 (99.5)
No	20,183 (5.6)	251 (1.2)	19,932 (98.8)		61 (0.3)	20,122 (99.7)
CMP				49.40***			5.81*
Yes	1345 (6.3)	47 (3.5)	1,298 (96.5)		9 (0.7)	1,336 (99.3)
No	20031 (93.7)	242 (1.2)	19,789 (98.8)		58 (0.3)	19,973 (99.7)

Note: SD, means standard error; CMP, means carbon monoxide poisoning. *, p < 0.05; **, p < 0.01; ***, p < 0.001.