Table 3. Main results of national community survey on overdiagnosis.
| On overdiagnosis | Unadjusted | Adjusted* | ||||
|---|---|---|---|---|---|---|
| Yes/Agree | No/Disagree | Don’t know/ neither/refused | Yes/Agree | No/Disagree | Don’t know/ neither/refused | |
| n(%)(95%CI) | n(%)(95%CI) | n(%)(95%CI) | %(95%CI) | %(95%CI) | %(95% CI) | |
| Seen or heard term ‘overdiagnosis’ before? | 313(62.6)(58.2–66.8) | 181(36.2)(32.0–40.6) | 6(1.2)(0.5–2.7) | 57.4(52.9–61.8) | 41.1(36.7–45.4) | 1.5(0.8–3.3) |
| Doctor ever told you about overdiagnosis? | 52(10.4)(7.9–13.5) | 443(88.6)(85.4–91.2) | 5(1.0)(0.4–2.5) | 9.7(7.2–12.6) | 89.5(86.3–91.9) | 0.8(0.3–2.2) |
| If screened for prostate cancer, told of overdiagnosis? | 16(18.2)(11.1–28.1) | 71(80.7)(70.6–88.0) | 1(1.1)(0.1–7.1) | 15.8(9.2–26.3) | 83.1(72.4–89.9) | 1.1(0.1–7.6) |
| If screened for breast cancer, told of overdiagnosis? | 18(9.7)(6.0–15.1) | 162(87.1)(81.2–91.4) | 6(3.2)(1.3–7.2) | 10.8(6.5–17.3) | 86.4(79.5–91.3) | 2.9(0.9–7.3) |
| Think routine screening almost always good idea? | 382(76.4)(72.4–80.0) | 85(17.0)(13.9–20.7) | 33(6.6)(4.7–9.2) | 79.0(75.1–82.4) | 15.1(12.1–18.5) | 6.0(4–8.3) |
| Should people be informed about risk of overdiagnosis? | 465(93.0)(90.3–95) | 18(3.6)(2.2–5.7) | 17(3.4)(2.1–5.5) | 93.4(90.8–95.4) | 3.5(2.4–6) | 3.0(1.9–5.3) |
| On genetic screening | Likely | Unlikely | Don’t know/ neither | Likely | Unlikely | Don’t know/neither |
| Likely or unlikely to have genetic screening test? | 243(48.6)(44.2–53.1) | 226(45.2)(40.8–49.7) | 31(6.2)(4.3–8.8) | 51.0(46.5–55.5) | 42.5(38.2–47.1) | 6.5(4.7–9.2) |
| If results uncertain, likely or unlikely to have test? | 142(28.4)(24.5–32.6) | 335(67.0)(62.7–71.1) | 23(4.6)(3–6.9) | 31.0(27.2–35.5) | 64.0(59.6–68.2) | 4.8(3.2–7.2) |
| On financial ties of disease-defining panels | Appropriate | Inappropriate | Don’t know/ neither/refused | Appropriate | Inappropriate | Don’t know/neither/refused |
| Appropriate or inappropriate for doctors with ties to pharmaceutical companies to be panel members? | 71(14.2)(11.3–17.6) | 391(78.2)(74.3–81.7) | 38(7.6)(5.5–10.4) | 16.2(13–19.6) | 75.6(71.6–79.3) | 8.1(5.8–10.8) |
*Adjustment involved two-step, rim weighting as described in Methods; due to rounding some rows do not add to 100%; calculation of Confidence Intervals includes continuity correction