Table 1 Demographic and clinical characteristics of participants, n(%)
Variable | Total sample (N = 12,327) | Knowing status of cancer diagnosis | |||
|---|---|---|---|---|---|
Did Know (n = 9466) | Did not know (n = 2756) | Unclear (n = 105) | P* | ||
Sex | |||||
 Male | 93(0.74) | 70(0.74) | 21(0.76) | 2 (1.90) | 0.904 |
 Female | 12,234(99.26) | 9396 (99.26) | 2735(99.24) | 103(98.10) |  |
Average age | 57.10 ± 12.70 | 55.97 ± 11.94 | 60.49 ± 14.20 | 69.52 ± 15.10 | < 0.001 |
 < 35 | 380(3.08) | 305(3.22) | 74(2.68) | 1(9.52) | < 0.001 |
 35- | 1564(12.69) | 1258(13.29) | 298(10.81) | 8(6.60) |  |
 45- | 3821(31.00) | 3137(33.14) | 672(24.38) | 12(7.62) |  |
 55- | 3488(28.30) | 2762(29.18) | 709(25.72) | 17(16.19) |  |
 65- | 1789(14.51) | 1289(13.62) | 482(17.49) | 18(17.14) |  |
 ≥ 75 | 1285(10.42) | 715(7.55) | 521(18.90) | 49(46.67) |  |
Clinical stage |  |  |  |  | < 0.001 |
 Stage 0- I | 3641(29.54) | 3024(31.94) | 614(22.28) | 3(2.86) |  |
 Stage II | 3700(30.02) | 3037(32.08) | 657(23.84) | 6(5.71) |  |
 Stage Ш | 1135(9.21) | 908(9.59) | 220(7.98) | 7(6.67) |  |
 Stage IV | 517(4.19) | 358(3.78) | 149(5.41) | 10(9.52) |  |
 Unclassified | 3334(27.05) | 2139(22.60) | 1116(40.49) | 79(75.24) |  |
Surgery history |  |  |  |  | < 0.001 |
 Yes | 6697(54.33) | 5320(56.20) | 1357(49.24) | 20(19.05) |  |
 No | 5630(45.67) | 4146(43.80) | 1399(50.76) | 85(80.95) |  |
Diagnostic year a | Â | Â | Â | Â | Â |
 1: before 2006 | 3268(26.51) | 2442(25.80) | 802(29.10) | 24(22.86) | 0.001 |
 2: 2007–2011 | 4074(32.83) | 3163(33.41) | 838(30.41) | 73(69.52) |  |
 3: 2012–2016 | 4985(40.44) | 3861(40.78) | 1116(40.50) | 8(7.62) |  |
Hospital grade |  |  |  |  | < 0.05 |
 Primary grade hospital | 166(1.35) | 103(1.09) | 45(1.63) | 18(17.14) |  |
 Middle grade hospital | 5088(41.28) | 3881(41.00) | 1176(42.67) | 31(29.52) |  |
 High grade hospital | 7073(57.38) | 5482(57.91) | 1535(55.70) | 56(53.33) |  |