Table 1 Characteristics before and after propensity score matching
(UNIT: n (%)) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Variables | Categories | Before Propensity Score Matching (n = 5,726) | After Propensity Score Matching (n = 3,768) | ||||||
Before COVID-19 outbreak (n = 3,534) | After COVID-19 outbreak (n = 2,192) | t | p | Before COVID-19 outbreak (n = 1,884) | After COVID-19 outbreak (n = 1,884) | t | p | ||
Sex | Male | 1,909 (56.3) | 1,286 (56.9) | –4.10 | < 0.001 | 1,084 (58.7) | 1,105 (56.9) | –0.70 | 0.482 |
Female | 1,625 (43.7) | 906 (43.1) | 4.10 | < 0.001 | 800 (41.3) | 779 (43.1) | 0.70 | 0.482 | |
Age (years) | 19 | 23 (0.8) | 11 (0.2) | –0.22 | 0.827 | 6 (0.4) | 9 (0.2) | –0.78 | 0.439 |
20–39 | 304 (10.0) | 273 (10.2) | –4.19 | < 0.001 | 203 (12.7) | 207 (9.2) | –0.21 | 0.833 | |
40–59 | 1,071 (32.6) | 671 (30.2) | –1.26 | 0.206 | 584 (32.4) | 603 (31.1) | –0.66 | 0.511 | |
60–79 | 1,749 (47.4) | 986 (45.9) | 3.83 | < 0.001 | 877 (45.0) | 864 (46.7) | 0.42 | 0.674 | |
≥ 80 | 387 (9.3) | 251 (13.4) | –0.14 | 0.886 | 214 (9.6) | 201 (12.8) | 0.68 | 0.499 | |
Residential area | Seoul | 319 (14.7) | 226 (14.3) | –1.55 | 0.121 | 170 (14.3) | 191 (14.1) | –1.15 | 0.250 |
Metropolitan | 669 (23.4) | 714 (23.1) | –15.47 | < 0.001 | 511 (32.5) | 509 (20.0) | 0.07 | 0.944 | |
Othersa | 2,546 (61.9) | 1,252 (62.6) | 14.61 | < 0.001 | 1,203 (53.2) | 1,184 (65.9) | 0.63 | 0.531 | |
Monthly income (10,000 KRW) | < 100 | 912 (20.5) | 674 (31.3) | –2.01 | 0.044 | 555 (24.4) | 552 (30.3) | 0.11 | 0.914 |
100–<200 | 1,006 (26.7) | 632 (26.9) | 0.40 | 0.691 | 514 (25.3) | 561 (27.6) | –1.66 | 0.096 | |
200–<300 | 572 (17.0) | 362 (17.5) | –1.45 | 0.148 | 325 (18.0) | 303 (17.3) | 0.97 | 0.330 | |
≥ 300 | 1,044 (35.9) | 524 (24.3) | 2.89 | 0.004 | 490 (32.3) | 468 (24.8) | 0.82 | 0.414 | |
Education | ≤Elementary school | 1,604 (38.3) | 801 (36.3) | 6.67 | < 0.001 | 712 (31.3) | 715 (37.0) | –0.10 | 0.918 |
Middle school | 597 (17.7) | 398 (19.0) | –0.86 | 0.391 | 352 (19.1) | 338 (19.0) | 0.60 | 0.547 | |
High school | 947 (30.7) | 691 (30.9) | –4.24 | < 0.001 | 590 (34.0) | 584 (30.6) | 0.21 | 0.833 | |
≥College | 386 (13.3) | 302 (13.7) | –3.24 | 0.001 | 230 (15.7) | 247 (13.4) | –0.82 | 0.413 | |
Degree of disability | Mild (grade 4–6) | 2,585 (72.1) | 1,146 (70.2) | 14.05 | < 0.001 | 1,109 (58.4) | 1,110 (74.9) | –0.03 | 0.973 |
Severe (grade 1–3) | 949 (27.9) | 1,046 (29.8) | –14.05 | < 0.001 | 775 (41.6) | 774 (25.1) | 0.03 | 0.973 | |
Type of disability | Physical | 3,147 (88.6) | 1,759 (87.4) | 7.70 | < 0.001 | 1,569 (83.0) | 1,573 (89.6) | –0.18 | 0.859 |
Intellectual | 387 (11.4) | 433 (12.6) | –7.67 | < 0.001 | 315 (17.0) | 311 (10.4) | 0.18 | 0.859 | |
Spouse | Yes | 2,001(55.8) | 1,065 (52.3) | 4.86 | < 0.001 | 962 (50.8) | 964 (54.1) | –0.07 | 0.948 |
Nob | 1,533(44.2) | 1,127 (47.7) | –4.86 | < 0.001 | 922 (49.2) | 920 (45.9) | 0.07 | 0.948 | |