Table 2.
Mixed-mixed multinomial logit analysisa.
|
|
Class 1: Strong supporters | Class 2: Weak supporters | |||||||||||||
|
|
Coefficient (95% CI) | P value | Coefficient (95% CI) | P value | |||||||||||
| Mean coefficient | |||||||||||||||
|
|
Left | 0.28 (0.15 to 0.42) | <.001 | 0.08 (−0.02 to 0.18) | .13 | ||||||||||
|
|
None | −5.13 (−5.79 to −4.46) | <.001 | −0.86 (−1.10 to −0.61) | <.001 | ||||||||||
|
|
Procedure | ||||||||||||||
|
|
|
Colonoscopy | −0.35 (−0.71 to 0.02) | .07 | −1.05 (−1.28 to −0.81) | <.001 | |||||||||
|
|
|
CTb colonography | −0.53 (−0.87 to −0.18) | <.001 | −1.01 (−1.23 to −0.78) | <.001 | |||||||||
|
|
|
Stool-based (2 days) | 0.00 (Reference) | —c | 0.00 (Reference) | — | |||||||||
|
|
|
Stool-based (1 day) | −0.20 (−0.57 to 0.16) | .27 | 0.63 (0.39 to 0.87) | <.001 | |||||||||
|
|
|
Blood-based | 0.06 (−0.27 to 0.49) | .70 | 0.66 (0.44 to 0.88) | <.001 | |||||||||
|
|
Pain level | ||||||||||||||
|
|
|
No pain | 0.00 (Reference) | — | 0.00 (Reference) | — | |||||||||
|
|
|
Mild pain | −0.25 (−0.46 to −0.04) | .02 | −0.84 (−0.98 to −0.70) | <.001 | |||||||||
|
|
Sensitivity (%) | ||||||||||||||
|
|
|
100 | 2.92 (2.61 to 3.24) | <.001 | 1.25 (1.10 to 1.41) | <.001 | |||||||||
|
|
|
95 | 1.58 (1.29 to 1.87) | <.001 | 0.42 (0.25 to 0.58) | <.001 | |||||||||
|
|
|
80 | 0.00 (Reference) | — | 0.00 (Reference) | — | |||||||||
|
|
|
60 | −1.65 (−2.04 to −1.27) | <.001 | −0.96 (−1.19 to −0.72) | <.001 | |||||||||
|
|
Recommendation | ||||||||||||||
|
|
|
Health Promotion Board | 1.24 (0.99 to 1.49) | <.001 | 0.79 (0.62 to 0.96) | <.001 | |||||||||
|
|
|
Doctors | 0.89 (0.64 to 1.14) | <.001 | 0.67 (0.50 to 0.83) | <.001 | |||||||||
|
|
|
Family or friends | 0.17 (−0.08 to 0.43) | .18 | 0.40 (0.22 to 0.58) | <.001 | |||||||||
|
|
|
Neither | 0.00 (Reference) | — | 0.00 (Reference) | — | |||||||||
|
|
Cost (Singapore $d) | ||||||||||||||
|
|
|
0 | 0.00 (Reference) | — | 0.00 (Reference) | — | |||||||||
|
|
|
5 | −0.67 (−1.02 to −0.32) | <.001 | −0.33 (−0.55 to −0.11) | <.001 | |||||||||
|
|
|
30 | −0.97 (−1.24 to −0.70) | <.001 | −0.83 (−0.99 to −0.66) | <.001 | |||||||||
|
|
|
400 | −2.24 (−2.55 to −1.94) | <.001 | −2.93 (−3.14 to −2.72) | <.001 | |||||||||
|
|
|
1000 | −4.00 (−4.41 to −3.59) | <.001 | −4.46 (−4.75 to −4.18) | <.001 | |||||||||
|
|
Risk of test | ||||||||||||||
|
|
|
No risk | 0.00 (Reference) | — | 0.00 (Reference) | — | |||||||||
|
|
|
1% risk of adverse event | −0.60 (−0.85 to −0.35) | <.001 | −1.04 (−1.21 to −0.87) | <.001 | |||||||||
| Class membership | |||||||||||||||
|
|
Sex | ||||||||||||||
|
|
|
Female | — | — | 0.19 (0.11 to 0.27) | <.001 | |||||||||
|
|
|
Male | — | — | 0.00 (Reference) | — | |||||||||
|
|
Ethnicity | ||||||||||||||
|
|
|
Chinese | — | — | 0.52 (0.41 to 0.63) | <.001 | |||||||||
|
|
|
Non-Chinese | — | — | 0.00 (Reference) | — | |||||||||
|
|
Age (years) | ||||||||||||||
|
|
|
40-60 | — | — | 0.00 (Reference) | — | |||||||||
|
|
|
≥61 | — | — | −0.52 (−0.61 to −0.42) | <.001 | |||||||||
|
|
Household income level (Singapore $) | ||||||||||||||
|
|
|
High income (≥6000) | — | — | −0.13 (−0.22 to −0.05) | <.001 | |||||||||
|
|
|
Lower income (≤5999) | — | — | 0.00 (Reference) | — | |||||||||
|
|
Marital status | ||||||||||||||
|
|
|
Married | — | — | −0.06 (−0.16 to 0.04) | .21 | |||||||||
|
|
|
Single or divorced or widowed or separated | — | — | 0.00 (Reference) | — | |||||||||
|
|
Education level | ||||||||||||||
|
|
|
Primary and secondary | — | — | 0.08 (−0.02 to 0.19) | .13 | |||||||||
|
|
|
Preuniversity | — | — | 0.00 (Reference) | — | |||||||||
|
|
|
University and above | — | — | 0.02 (−0.22 to −0.05) | .61 | |||||||||
|
|
Housing type | ||||||||||||||
|
|
|
Public housing | — | — | 0.00 (Reference) | — | |||||||||
|
|
|
Private housing | — | — | −0.47 (−0.60 to −0.35) | <.001 | |||||||||
|
|
Working status | ||||||||||||||
|
|
|
Currently working | — | — | −0.24 (−0.34 to −0.14) | <.001 | |||||||||
|
|
|
Not working or retired or student | — | — | 0.00 (Reference) | — | |||||||||
|
|
Family history of CRCe | ||||||||||||||
|
|
|
Yes | — | — | −0.74 (−0.85 to −0.63) | <.001 | |||||||||
|
|
|
No | — | — | 0.00 (Reference) | — | |||||||||
|
|
CRC screening history | ||||||||||||||
|
|
|
Yes | — | — | −0.52 (−0.60 to −0.44) | <.001 | |||||||||
|
|
|
No | — | — | 0.00 (Reference) | — | |||||||||
|
|
Perceived safety of test score | — | — | −0.16 (−0.17 to −0.14) | <.001 | ||||||||||
|
|
Social support score | — | — | −0.03 (−0.05 to −0.02) | <.001 | ||||||||||
|
|
Present orientation | — | — | −0.03 (−0.05 to −0.02) | <.001 | ||||||||||
|
|
Intolerance of uncertainty | — | — | −0.01 (−0.02 to −0.01) | <.001 | ||||||||||
aLog-likelihood: −8041, Akaike information criteria: 16,257, Bayesian information criteria: 16,955.
bCT: computed tomography.
cNot applicable.
dSingapore $1=approximately US $0.75.
eCRC: colorectal cancer.