Table 6 Logistic regression: factors influencing the value of willingness-to-pay. Best fit logistic regression models for each cancer separately and all cancers together
From: Using willingness-to-pay to establish patient preferences for cancer testing in primary care
£ | All cancers togethera | Colorectal (colonoscopy) | Lung (chest x-ray) | Pancreas (Ultrasound / CT scan) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Variable (reference category) | Coeff (se) | p-value | 95 % CI | Coeff (se) | p-value | 95 % CI | Coeff (se) | p-value | 95 % CI | Coeff (se) | p-value | 95 % CI |
Cancer (colorectal) | 0.0012 | |||||||||||
Lung | −50.80 (18.67) | 0.0070 | (−87.43 to −14.18) | |||||||||
Pancreas | 8.56 (19.37) | 0.6590 | (−29.44 to 46.55) | |||||||||
Risk (1 %) | 0.0206 | |||||||||||
2 % | 65.53 (21.07) | 0.0020 | (24.21 to 106.85) | |||||||||
5 % | 49.71 (21.29) | 0.0200 | (7.95 to 91.47) | |||||||||
10 % | 88.15 (20.93) | <0.0001 | (47.10 to 129.20) | |||||||||
Household Income (<£10,000) | <0.0001 | <0.0001 | <0.0001 | <0.0001 | ||||||||
£10,000 - £25,000 | 46.96 (22.22) | 0.0350 | (3.39 to 90.53) | 23.06 (27.35) | 0.3990 | (−30.58 to 76.71) | 48.75 (26.63) | 0.0670 | (−3.48 to 100.99) | 42.47 (27.29) | 0.1200 | (−11.05 to 96.00) |
>£25,000 | 153.42 (25.43) | >0.0001 | (103.55 to 203.30) | 132.99 (28.73) | <0.0001 | (76.62 to 189.36) | 150.42 (29.83) | <0.0001 | (91.90 to 208.93) | 145.28 (28.86) | <0.0001 | (88.66 to 201.90) |
Education | <0.0001 | <0.0001 | 0.0208 | <0.0001 | ||||||||
GCSE or equivalent | −21.07 (23.59) | 0.3720 | (−67.33 to 25.20) | −9.85 (28.87) | 0.7330 | (−66.50 to 46.79) | −0.22 (27.73) | 0.9940 | (−54.61 to 54.17) | −41.75 (28.49) | 0.1430 | −97.64 to 14.14) |
A-level or equivalent | 21.48 (22.91) | 0.3490 | (−23.46 to 66.43) | 33.44 (28.13) | 0.2350 | (−21.75 to 88.62) | 35.68 (27.42) | 0.1930 | (−18.10 to 89.46) | −17.51 (28.02) | 0.5320 | −72.47 to 37.45) |
Higher education | 95.22 (24.36) | <0.0001 | (47.44 to 143.01) | 133.53 (29.96) | <0.0001 | (74.74 to 192.31) | 72.97 (29.08) | 0.0120 | (15.93 to 130.01) | 86.06 (29.78) | 0.0040 | (27.64 to 144.49) |
Cancer diagnosis (yes) | 0.0033 | 0.0048 | 0.0138 | 0.0092 | ||||||||
No | −63.48 (21.67) | 0.0030 | (−105.98 to −20.98) | −73.04 (25.93) | 0.0050 | (−123.92 to −22.17) | −63.63 (25.92) | 0.0140 | (−114.47 to −12.79) | −70.71 (27.18) | 0.0090 | (−124.02 to −17.39) |
Employment (Retired) | 0.0137 | 0.0488 | ||||||||||
Not in paid employment | −76.57 (27.55) | 0.0060 | (−130.60 to −22.53) | −82.45 (32.22) | 0.0100 | (−145.64 to −19.25) | ||||||
Working part time | −40.55 (21.33) | 0.0570 | (−82.37 to 1.27) | −43.00 (25.33) | 0.0900 | (−92.70 to 6.70) | ||||||
Working full time | −3.39 (21.22) | 0.8730 | (−45.01 to 38.23) | −20.24 (23.86) | 0.3960 | (−67.05 to 26.57) | ||||||
Family cancer (yes) | 0.0276 | |||||||||||
No | −46.89 (21.36) | 0.0280 | −88.78 to −5.00) | |||||||||
Sex (male) | 0.0298 | |||||||||||
Female | −40.09 (18.49) | 0.0300 | −76.37 to −3.81) | |||||||||