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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: J Affect Disord. 2015 Jul 26;186:198–202. doi: 10.1016/j.jad.2015.06.025

Table 1.

Distribution of study population and the prevalence of the three lifetime suicidal behaviors (i.e., ideation, plan, and attempt) by each covariate (N=9205).

Covariates Total Prevalence of lifetime suicidal ideation
Prevalence of lifetime suicidal plan
Prevalence of lifetime suicidal attempt
N N (%) P * N (%) P * N (%) P *
Sex <0.001 0.004 <0.001
 Male 4052 413 (10.2) 74 (1.8) 41 (1.0)
 Female 5153 751 (14.6) 143 (2.8) 98 (1.9)
Age (years) <0.001 <0.001 0.001
 18–29 443 33 (7.4) 5 (1.1) 3 (0.7)
 30–39 1465 151 (10.3) 24 (1.6) 15 (1.0)
 40–49 1765 222 (12.6) 31 (1.8) 20 (1.1)
 50–59 1563 237 (15.2) 56 (3.6) 40 (2.6)
 60 or more 3969 521 (13.1) 101 (2.5) 61 (1.5)
Education <0.001 <0.001 <0.001
 No education 4186 594 (14.2) 131 (3.1) 89 (2.1)
 Elementary school graduate 2711 366 (13.5) 61 (2.3) 36 (1.3)
 Junior high school graduate 771 72 (9.3) 9 (1.2) 6 (0.8)
 High school graduate or more 1537 132 (8.6) 16 (1.0) 8 (0.5)
Income <0.001 <0.001 <0.001
 Lowest quartile 2699 476 (17.6) 109 (4.0) 74 (2.7)
 Second lowest quartile 2167 299 (13.8) 54 (2.5) 29 (1.3)
 Third lowest quartile 2144 219 (10.2) 28 (1.3) 19 (0.9)
 Highest quartile 2195 170 (7.7) 26 (1.2) 17 (0.8)
Education of father 0.014 0.161 0.442
 No education 3254 433 (13.3) 90 (2.8) 55 (1.7)
 Elementary school graduate 3172 393 (12.4) 70 (2.2) 48 (1.5)
 Junior high school graduate 1051 155 (14.7) 28 (2.7) 18 (1.7)
 High school graduate or more 1728 183 (10.6) 29 (1.7) 18 (1.0)
Education of mother 0.012 0.013 0.027
 No education 4658 628 (13.5) 127 (2.7) 86 (1.8)
 Elementary school graduate 2834 357 (12.6) 68 (2.4) 40 (1.4)
 Junior high school graduate 884 103 (11.7) 14 (1.6) 6 (0.7)
 High school graduate or more 829 76 (9.2) 8 (1.0) 7 (0.8)
Occupation of father 0.038 0.014 0.463
 Non-manual 1164 124 (10.7) 18 (1.5) 13 (1.1)
 Manual 7771 998 (12.8) 187 (2.4) 121 (1.6)
 Others 270 42 (15.6) 12 (4.4) 5 (1.9)
Occupation of mother 0.372 0.016 0.063
 Non-manual 80 8 (10.0) 0 (0.0) 0 (0.00)
 Manual 6605 844 (12.8) 153 (2.3) 97 (1.5)
 Others 2520 312 (12.4) 64 (2.5) 42 (1.7)
Number of childhood adversities <0.001 <0.001 <0.001
 0 6365 723 (11.4) 123 (1.9) 77 (1.2)
 1 2137 322 (15.1) 70 (3.3) 47 (2.2)
 2 576 94 (16.3) 19 (3.3) 9 (1.6)
 3 or 4 127 25 (19.7) 5 (3.9) 6 (4.7)
*

P-values from a chi-square test.