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. 2021 Mar 4;16(3):e0247916. doi: 10.1371/journal.pone.0247916

Table 3. Differences in male perpetration of IPV by multi-level factor (N = 1,272).

Variables Total Male Perpetration χ2 or t p
Yes (n = 147) No (n = 1,125)
Personal history Witnessing parents’ violence in childhood Yes 451 (37.0) 88 (59.5) 363 (34.0) 36.39 < .001
No 821 (63.0) 59 (40.5) 762 (66.0)
Childhood maltreatment by parents Yes 741 (59.7) 109 (72.4) 632 (58.1) 11.07 .002
No 531 (40.3) 38 (27.6) 493 (41.9)
Micro- system Structure of decision making with partner Mean ± SD 3.07 ± 0.03 3.05 ± 0.05 3.09 ± 0.02 -0.95 .345
Age (years) 19–39 261 (16.8) 24 (14.7) 261 (16.8) 0.61 .913
40–49 319 (25.8) 40 (27.2) 319 (25.8)
50–59 351 (28.6) 45 (29.2) 351 (28.6)
≥60 341 (28.7) 38 (28.9) 341 (28.7)
Exo- system Education level ≤Elementary 72 (5.5) 9 (5.4) 63 (5.5) 4.42 .302
Middle school 108 (9.3) 11 (8.9) 97 (9.3)
High school 556 (45.1) 76 (52.8) 480 (44.1)
≥College 536 (40.2) 51 (32.9) 485 (41.2)
Household income (1,000 KRW) <2,000 186 (14.2) 22 (14.6) 164 (14.2) 1.24 .781
2,000–2,999 218 (15.6) 23 (14.1) 195 (15.8)
3,000–3,999 328 (24.7) 41 (28.2) 287 (24.3)
≥4,000 539 (45.5) 61 (43.2) 478 (45.8)
Occupation type Professional or Manager 116 (10.8) 15 (11.9) 101 (10.7) 0.27 .889
Office job 324 (27.0) 38 (27.8) 286 (26.9)
Others 697 (62.2) 78 (60.3) 619 (62.4)
Macro- system Attitude to gender roles Mean ± SD 2.40 ± 0.02 2.43 ± 0.04 2.37 ± 0.02 1.45 .147
Awareness of neighborhood and community Mean ± SD 2.58 ± 0.02 2.62 ± 0.04 2.54 ± 0.02 1.62 .105
Attitude to IPV Mean ± SD 1.95 ± 0.02 2.05 ± 0.04 1.84 ± 0.01 4.72 〈.001
Awareness of IPV -related laws and policies Mean ± SD 4.03 ± 0.08 3.93 ± 0.15 4.13 ± 0.06 -1.28 .201
Awareness of support facilities Mean ± SD 2.16 ± 0.06 2.16 ± 0.10 2.16 ± 0.04 0.00 1.000

IPV: Intimate partner violence.