Mental and physical health outcomes among intimate partner violence survivors in Taiwan: A nationwide registry-based case control study

Table 1 Baseline demographic characteristics of the study population before matching, according to intimate partner violence exposure status, n (%)

Variables	No IPV, n = 16418438	IPV, n = 43393	P value1
Sex			< 0.0001
Male	8244135 (50.22)	7637 (17.6)
Female	8174303 (49.78)	35756 (82.4)
Age in years			< 0.0001
18-24	2029362 (12.36)	3046 (7.02)
25-29	1566086 (9.53)	4162 (9.59)
30-39	3515627 (21.41)	14426 (33.24)
40-49	3777280 (23)	12835 (29.58)
50-64	5530083 (33.68)	8924 (20.57)
Monthly insurance premium			< 0.0001
Low (≤ 28860 New Taiwan dollar)	9290890 (56.58)	31485 (72.56)
Medium (28861-43642 New Taiwan dollar)	3010419 (18.33)	5770 (13.3)
High (> 43642 New Taiwan dollar)	4117129 (25.07)	6138 (14.15)
Low-income household			< 0.0001
No	16245178 (98.94)	41825 (96.39)
Yes	173260 (1.06)	1568 (3.61)
Urbanization level			< 0.0001
High	9841750 (59.94)	24471 (59)
Medium	4748681 (28.92)	13315 (32.1)
Low	1008816 (6.14)	3690 (8.9)
Missing	819191 (4.98)	1917 (4.42)

¹Group differences were examined using the χ² test.

IPV: Intimate partner violence.