Table 3.
Comparison, by risk level, of men's knowledge of PCa at baseline and follow-up
| Low risk |
Intermediate risk |
High risk |
PCa diagnosis |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | Follow-up | p value a | Baseline | Follow-up | p value a | Baseline | Follow-up | p value a | Baseline | Follow-up | p value a | |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | |||||
| 1. How many men with early-stage PCa do you think will die of the disease? | 0.08 | 0.002 | 0.2 | 0.01 | ||||||||
| Most will not b | 344 (82) | 359 (85) | 348 (83) | 372 (88) | 79 (85) | 85 (91) | 45 (76) | 53 (90) | ||||
| Wrong answer/do not know | 77 (18) | 62 (15) | 73 (17) | 49 (12) | 14 (15) | 8 (9) | 14 (24) | 6 (10) | ||||
| 2. Does active treatment for early-stage PCa extend life? | 0.08 | 0.05 | 0.7 | <0.001 | ||||||||
| Pretty sure it can b | 189 (45) | 168 (40) | 178 (42) | 155(37) | 38 (41) | 40 (43) | 36 (61) | 16 (27) | ||||
| Wrong answer/do not now | 232 (55) | 253 (60) | 243 (58) | 266 (63) | 55 (59) | 53 (57) | 23 (39) | 43 (73) | ||||
| 3. How many men with elevated PSA levels do you think have PCa? | <0.001 | 0.002 | <0.001 | 0.2 | ||||||||
| Most do not b | 114 (27) | 161 (38) | 117 (28) | 150 (36) | 34 (37) | 59 (63) | 22 (37) | 28 (47) | ||||
| Wrong answer/do not know | 307 (73) | 260 (62) | 304 (72) | 271 (64) | 59 (63) | 34 (37) | 37 (63) | 31 (53) | ||||
| 4. Do you think an infection or inflammation of the prostate can elevate PSA levels? | 0.3 | <0.001 | 0.001 | 0.1 | ||||||||
| Yes b | 182 (43) | 194 (46) | 153 (36) | 200 (48) | 45 (48) | 62 (67) | 25 (42) | 31 (53) | ||||
| No/do not know | 239 (57) | 227 (54) | 267 (64) | 220 (52) | 48 (52) | 31 (33) | 34 (58) | 28 (47) | ||||
| 5. Do you think a large prostate can elevate PSA levels? | 0.7 | 0.6 | <0.001 | 0.2 | ||||||||
| Yes b | 204 (48) | 209 (50) | 208 (50) | 214 (51) | 51 (55) | 73 (78) | 33 (56) | 39 (66) | ||||
| No/do not know | 217(52) | 212 (50) | 212 (50) | 206 (49) | 42 (45) | 20 (22) | 26 (44) | 20 (34) | ||||
| 6. Do you think a prostate biopsy can miss some cancer? | 0.9 | 0.9 | 0.3 | 0.8 | ||||||||
| Yes b | 162 (38) | 164 (39) | 185 (44) | 185 (44) | 53 (57) | 47 (51) | 29 (49) | 30 (51) | ||||
| No/do not know | 259 (62) | 257 (61) | 235 (56) | 235(56) | 40 (43) | 46 (49) | 30 (51) | 29 (49) | ||||
PCa = prostate cancer; PSA = prostate-specific antigen.
a
Paired Wilcoxon signed rank test.
b
Denotes correct answer.