Background
Methods
Data source and subjects
Independent variables and outcome variables
Statistical analysis
Results
Baseline characteristics and participation in cervical cancer screening
Variables | 1998 | 2001 | 2005 | 2008 | 2010 | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | % | Screen | % | p-value | Total | % | Screen | % | p-value | Total | % | Screen | % | p-value | Total | % | Screen | % | p-value | Total | % | Screen | % | p-value | |
Age (years)
| |||||||||||||||||||||||||
30-39 | 715 | 30.1 | 362 | 50.9 | <.0001 | 369 | 23.6 | 191 | 50.6 | <.0001 | 710 | 29.7 | 362 | 51.3 | <.0001 | 707 | 26.4 | 363 | 51.8 | <.0001 | 617 | 24.1 | 317 | 51.9 | <.0001 |
40-49 | 641 | 24.9 | 358 | 55.9 | 373 | 23.8 | 217 | 58.8 | 709 | 27.7 | 421 | 59.0 | 663 | 28.1 | 393 | 60.2 | 556 | 26.6 | 340 | 61.1 | |||||
50-59 | 557 | 18.5 | 219 | 39.0 | 310 | 20.1 | 132 | 43.9 | 469 | 17.5 | 217 | 44.1 | 562 | 20.6 | 312 | 54.3 | 623 | 22.3 | 385 | 60.8 | |||||
60-69 | 497 | 15.6 | 101 | 21.6 | 315 | 18.3 | 79 | 26.3 | 397 | 13.1 | 123 | 34.2 | 536 | 13.4 | 208 | 40.7 | 502 | 13.6 | 250 | 49.1 | |||||
70+ | 315 | 11.0 | 25 | 6.4 | 255 | 14.1 | 27 | 9.1 | 311 | 11.9 | 43 | 14.7 | 476 | 11.5 | 86 | 17.9 | 439 | 13.4 | 116 | 26.3 | |||||
Education
| |||||||||||||||||||||||||
None or elementary school | 1,414 | 45.5 | 381 | 26.1 | <.0001 | 751 | 44.3 | 186 | 25.4 | <.0001 | 897 | 32.1 | 260 | 29.9 | <.0001 | 1,138 | 29.9 | 375 | 35.5 | <.0001 | 1,294 | 43.8 | 563 | 43.6 | <.0001 |
Middle or high school | 1,089 | 44.6 | 564 | 52.0 | 688 | 44.2 | 360 | 53.1 | 1,224 | 48.8 | 641 | 52.1 | 1,239 | 48.6 | 643 | 51.9 | 1,023 | 40.9 | 588 | 59.4 | |||||
University or higher | 222 | 10.0 | 120 | 54.4 | 183 | 11.6 | 100 | 53.4 | 475 | 19.1 | 265 | 55.2 | 567 | 21.5 | 344 | 62.6 | 420 | 15.3 | 257 | 59.5 | |||||
Marital status
| |||||||||||||||||||||||||
Married | 2,073 | 77.2 | 944 | 46.8 | <.0001 | 1,181 | 73.0 | 539 | 45.8 | <.0001 | 1,984 | 76.0 | 999 | 50.6 | <.0001 | 664 | 18.6 | 199 | 32.0 | <.0001 | 2,202 | 81.3 | 1,202 | 55.2 | <.0001 |
not married | 652 | 22.8 | 121 | 19.1 | 441 | 27.0 | 107 | 27.6 | 612 | 24.0 | 167 | 29.6 | 2,280 | 81.4 | 1,163 | 53.2 | 535 | 18.7 | 206 | 40.8 | |||||
Household income
| |||||||||||||||||||||||||
Quartile 1 | 770 | 24.6 | 184 | 24.8 | <.0001 | 509 | 30.4 | 109 | 23.8 | <.0001 | 666 | 23.0 | 187 | 27.6 | <.0001 | 694 | 17.0 | 220 | 33.8 | <.0001 | 635 | 20.6 | 252 | 40.7 | <.0001 |
Quartile 2 | 643 | 22.0 | 247 | 39.6 | 407 | 23.8 | 175 | 44.0 | 624 | 25.6 | 255 | 40.8 | 756 | 27.3 | 328 | 47.5 | 685 | 27.1 | 336 | 51.5 | |||||
Quartile 3 | 708 | 27.6 | 345 | 49.0 | 347 | 22.4 | 170 | 49.1 | 669 | 26.5 | 343 | 51.2 | 759 | 28.1 | 382 | 50.9 | 710 | 27.3 | 391 | 55.0 | |||||
Quartile 4 | 604 | 25.8 | 289 | 47.0 | 359 | 23.5 | 192 | 52.1 | 637 | 24.9 | 381 | 61.0 | 735 | 27.6 | 432 | 58.9 | 707 | 25.0 | 429 | 60.6 | |||||
Health insurance type
| |||||||||||||||||||||||||
NHI (self-employed) | 1,482 | 53.7 | 597 | 41.3 | <.0001 | 748 | 46.2 | 296 | 40.0 | 0.002 | 1,066 | 42.5 | 451 | 44.0 | 0.064 | 1,156 | 39.9 | 524 | 48.4 | 0.001 | 932 | 36.7 | 446 | 49.8 | 0.252 |
NHI (employee) | 1,120 | 42.3 | 453 | 42.3 | 780 | 48.1 | 333 | 44.0 | 1,412 | 53.5 | 671 | 47.5 | 1,662 | 56.9 | 805 | 51.1 | 1,712 | 59.6 | 919 | 54.0 | |||||
Medical Aid | 123 | 4.0 | 15 | 9.6 | 94 | 5.7 | 17 | 22.1 | 118 | 4.0 | 44 | 35.5 | 126 | 3.2 | 33 | 28.0 | 93 | 3.8 | 43 | 56.1 | |||||
Occupation
| |||||||||||||||||||||||||
white collar | 481 | 20.3 | 236 | 48.9 | <.0001 | 312 | 19.4 | 165 | 50.5 | 0.002 | 663 | 25.8 | 352 | 52.7 | 0.003 | 628 | 23.9 | 344 | 54.0 | 0.024 | 670 | 27.7 | 369 | 55.0 | 0.233 |
blue collar | 836 | 23.8 | 290 | 35.4 | 324 | 20.1 | 124 | 40.9 | 545 | 18.8 | 232 | 43.6 | 751 | 21.4 | 315 | 45.3 | 569 | 21.4 | 282 | 54.0 | |||||
others | 1,408 | 55.9 | 539 | 39.6 | 986 | 60.6 | 357 | 37.8 | 1,388 | 55.4 | 582 | 42.9 | 1,562 | 54.7 | 700 | 48.7 | 1,498 | 50.8 | 757 | 50.5 | |||||
Limitation in general activities
| |||||||||||||||||||||||||
Yes | 709 | 27.4 | 293 | 44.5 | 0.013 | 201 | 12.8 | 62 | 33.7 | 0.045 | 349 | 12.5 | 104 | 30.8 | <.0001 | 743 | 21.4 | 279 | 44.1 | 0.019 | 929 | 31.3 | 433 | 49.1 | 0.024 |
No | 2,016 | 72.6 | 772 | 38.9 | 1,421 | 87.2 | 584 | 41.9 | 2,247 | 87.5 | 1,062 | 47.7 | 2,201 | 78.6 | 1,083 | 50.7 | 1,808 | 68.7 | 975 | 54.1 | |||||
Perceived health status
| |||||||||||||||||||||||||
Good or regular | 1,675 | 63.9 | 699 | 43.0 | 0.001 | 1,014 | 63.3 | 456 | 45.5 | <.0001 | 1,807 | 70.7 | 891 | 49.8 | <.0001 | 1,993 | 71.9 | 956 | 50.2 | 0.165 | 2,029 | 74.8 | 1,093 | 54.1 | 0.016 |
Bad | 1,050 | 36.1 | 366 | 36.0 | 608 | 36.7 | 190 | 32.9 | 789 | 29.3 | 275 | 35.3 | 951 | 28.1 | 406 | 46.8 | 708 | 25.2 | 315 | 47.8 | |||||
Smoking
| |||||||||||||||||||||||||
Non-smoker | 2,445 | 89.7 | 1,004 | 42.2 | <.0001 | 1,499 | 92.1 | 618 | 42.4 | 0.001 | 2,375 | 90.8 | 1,101 | 46.9 | 0.000 | 2,644 | 88.7 | 1,248 | 49.9 | 0.094 | 2,503 | 90.1 | 1,299 | 52.7 | 0.026 |
Ex-smoker | 72 | 3.0 | 15 | 23.4 | 24 | 1.6 | 4 | 17.7 | 104 | 4.3 | 38 | 53.9 | 148 | 5.5 | 61 | 49.7 | 133 | 5.4 | 72 | 60.1 | |||||
Current smoker | 208 | 7.2 | 46 | 25.4 | 99 | 6.2 | 24 | 25.0 | 117 | 4.9 | 27 | 28.4 | 152 | 5.8 | 53 | 38.8 | 101 | 4.5 | 37 | 40.7 | |||||
Body mass index (kg/m
2
)
| |||||||||||||||||||||||||
<18.5 | 106 | 3.8 | 24 | 26.8 | 0.007 | 65 | 3.7 | 21 | 31.0 | 0.165 | 81 | 3.0 | 35 | 42.2 | 0.066 | 123 | 4.3 | 50 | 40.9 | 0.030 | 101 | 3.7 | 45 | 45.5 | 0.000 |
18.5 ≤ 23 | 1,076 | 40.4 | 437 | 43.1 | 601 | 37.9 | 257 | 43.4 | 4,050 | 41.3 | 493 | 48.0 | 1,209 | 43.1 | 580 | 52.3 | 1,150 | 42.5 | 624 | 55.8 | |||||
23 ≤ 25 | 637 | 23.6 | 262 | 41.8 | 399 | 24.4 | 160 | 42.3 | 637 | 23.7 | 292 | 47.4 | 683 | 23.1 | 320 | 50.4 | 640 | 23.5 | 358 | 56.6 | |||||
25≤ | 906 | 32.2 | 342 | 37.7 | 557 | 33.9 | 208 | 38.2 | 828 | 31.9 | 346 | 41.3 | 929 | 29.5 | 412 | 45.2 | 846 | 30.3 | 381 | 45.6 | |||||
total
| 2,725 | 100.0 | 1,065 | 40.5 | 1,622 | 100.0 | 646 | 40.9 | 2,596 | 100.0 | 1,166 | 45.5 | 2,944 | 100.0 | 1,362 | 49.3 | 2,737 | 100.0 | 1,408 | 52.5 |
Factors associated with cervical cancer screening participation
Variables | 1998 | 2001 | 2005 | 2008 | 2010 | |||||
---|---|---|---|---|---|---|---|---|---|---|
Education
| ||||||||||
None or elementary school | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |||||
Middle or high school | 1.43 | (1.13-1.82) | 1.67 | (1.18-2.38) | 1.15 | (0.82-1.61) | 1.24 | (0.93-1.66) | 1.71 | (1.24-2.35) |
University or higher | 1.56 | (1.05-2.30) | 1.56 | (0.94-2.61) | 1.00 | (0.64-1.56) | 1.90 | (1.26-2.87) | 1.73 | (1.12-2.66) |
Household income
| ||||||||||
Quartile 1 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |||||
Quartile 2 | 1.22 | (0.92-1.62) | 1.65 | (1.16-2.34) | 1.39 | (1.00-1.93) | 1.09 | (0.82-1.46) | 1.12 | (0.84-1.49) |
Quartile 3 | 1.52 | (1.11-2.07) | 1.72 | (1.15-2.59) | 1.93 | (1.44-2.59) | 1.05 | (0.78-1.40) | 1.21 | (0.89-1.66) |
Quartile 4 | 1.31 | (0.95-1.81) | 1.80 | (1.22-2.68) | 2.82 | (2.01-3.96) | 1.34 | (0.97-1.84) | 1.45 | (1.08-1.94) |
Occupation
| ||||||||||
white collar | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |||||
blue collar | 0.92 | (0.69-1.23) | 1.08 | (0.70-1.66) | 1.01 | (0.72-1.41) | 1.01 | (0.78-1.32) | 1.29 | (0.95-1.76) |
others | 1.12 | (0.87-1.44) | 1.02 | (0.79-1.35) | 1.04 | (0.79-1.35) | 1.18 | (0.93-1.49) | 1.20 | (0.92-1.57) |