Table 1 Characteristics of respondents by year before and after propensity score (PS) matching
Covariate | Before PS match | After PS match | ||||
|---|---|---|---|---|---|---|
2010 (n = 1026) | 2016 (n = 974) | P-value | 2010 (n = 823) | 2016 (n = 823) | P-value | |
Gender | ||||||
Male | 437 (42.6) | 333 (34.2) | < 0.001 | 339 (41.2) | 311 (37.8) | 0.158 |
Female | 589 (57.4) | 641 (65.8) | 484 (58.8) | 512 (62.2) | ||
Age | ||||||
70–74 | 317 (31) | 293 (30.1) | 0.108 | 259 (31.5) | 248 (30.1) | 0.923 |
75–79 | 319 (31.2) | 264 (27.1) | 255 (31) | 254 (30.9) | ||
80–84 | 249 (24.3) | 270 (27.7) | 200 (24.3) | 209 (25.4) | ||
≥ 85 | 138 (13.5) | 147 (15.1) | 109 (13.2) | 112 (13.6) | ||
Living districts | ||||||
HK Islands | 210 (20.5) | 292 (30.1) | < 0.001 | 196 (23.8) | 229 (27.8) | 0.154 |
Kowloon | 310 (30.2) | 357 (36.8) | 302 (36.7) | 277 (33.7) | ||
New Territories | 505 (49.3) | 320 (33) | 325 (39.5) | 317 (38.5) | ||
Social Security Assistance | ||||||
No | 924 (90.1) | 863 (88.6) | 0.292 | 743 (90.3) | 731 (88.8) | 0.334 |
Yes | 102 (9.9) | 111 (11.4) | 80 (9.7) | 92 (11.2) | ||
Medical insurance coverage | ||||||
No | 944 (93.5) | 913 (95.4) | 0.062 | 769 (93.4) | 780 (94.8) | 0.250 |
Yes | 66 (6.5) | 44 (4.6) | 54 (6.6) | 43 (5.2) | ||
Living status | ||||||
Living with others | 799 (78.3) | 749 (76.9) | 0.467 | 637 (77.4) | 614 (74.6) | 0.184 |
Living alone | 222 (21.7) | 225 (23.1) | 186 (22.6) | 209 (25.4) | ||