Table 1 Demographic characteristic for COPD patients with and without GORD
Characteristic | With GORD ( n = 1,210) | Without GORD ( n = 2,420) | P value |
|---|---|---|---|
Male | 807 (66.69) | 1,621 (66.98) | 0.861a |
Age | 63.4 (±12.16) | 63 (±12.38) | 0.414a |
Age category | |||
 40 to 50 | 214 (17.69) | 461 (19.05) | 0.795a |
 51 to 60 | 267 (22.07) | 516 (21.32) | |
 61 to 70 | 309 (25.54) | 632 (26.12) | |
 71 to 80 | 324 (26.78) | 616 (25.45) | |
  ≥ 80 | 96 (7.93) | 195 (8.06) | |
CCI category | |||
 0 | 22 (1.82) | 55 (2.27) | 0.757a |
 1 to 3 | 563 (46.53) | 1,142 (47.19) | |
 4 to 6 | 415 (34.3) | 802 (33.14) | |
  ≥ 7 | 210 (34.3) | 421 (17.4) | |
Proxy COPD severity | 40 (3.31) | 79 (3.26) | 0.947a |
COPD medication | |||
 SABA | 171 (14.13) | 396 (16.36) | 0.081 |
 LABA | 12 (0.99) | 22 (0.91) | 0.808 |
 SAMA | 157 (12.98) | 344 (14.21) | 0.307 |
 Theophylline | 1,071 (88.51) | 2,066 (85.37) | 0.009 |
 ICS | 42 (3.43) | 65 (2.67) | 0.187 |
 LAMA | 15 (1.24) | 26 (1.07) | 0.657 |
Vaccines | |||
 Influenza and pneumococcal | 454 (37.52) | 890 (36.78) | 0.662 |
Residential area | |||
 Urban | 675 (55.79) | 1,363 (56.32) | 0.888a |
 Suburban | 418 (34.55) | 817 (33.76) | |
 Rural | 117 (9.67) | 240 (9.92) | |
Occupation category | |||
 1 | 325 (26.86) | 714 (29.5) | 0.098a |
 2 | 535 (44.21) | 1,078 (44.55) | |
 3 | 350 (28.93) | 628 (25.95) | |
Monthly insurance premium ($NT)b | |||
 No fee | 274 (22.64) | 628 (25.95) | 0.079a |
 1 to 19,199 | 332 (27.44) | 602 (24.88) | |
 19,200 to 23,999 | 400 (33.06) | 817 (33.76) | |
  ≥ 24,000 | 204 (16.86) | 373 (15.41) |