Table 1 |
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Parameter estimates (standard errors) from logistic regression models for FP's |
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|
Narrow FP |
Broad FP |
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|
|
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|
initial model |
final model |
final model |
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|
|
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|
model for initial FP |
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|
α0 |
-4.30 (.13) |
-4.14 (.06) |
-2.37 (.05) |
|
αage(2) |
.23 (.17) |
.15 (.07) |
|
|
αage(3) |
.29 (.17) |
-.01 (.08) |
|
|
αage(4) |
.13 (.19) |
.05 (.08) |
|
|
αage(5) |
.00 (.22) |
-.02 (.09) |
|
|
model for subsequent FP's |
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|
β0 |
-4.81 (.18) |
-4.89 (.06) |
-2.85 (.07) |
|
βage(2) |
.24 (.19) |
-.02 (.07) |
|
|
βage(3) |
.00 (.19) |
-.16 (.08) |
|
|
βage(4) |
-.32 (.21) |
-.28 (.08) |
|
|
βage(5) |
.07 (.21) |
-.24 (.08) |
|
|
βtime(2) |
-.02 (.11) |
-.13 (.05) |
|
|
βtime(3) |
.10 (.20) |
-.22 (.09) |
|
|
βtime(4) |
.12 (.22) |
-.08 (.09) |
|
|
βscreen(3) |
-.30 (.13) |
-.11 (.05) |
|
|
βscreen(4) |
-.07 (.13) |
-.22 (.06) |
|
|
βFP(1) |
2.35 (.14) |
2.34 (.14) |
1.64 (.05) |
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|
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|
Baker et al. BMC Medical Research Methodology 2003 3:11 doi:10.1186/1471-2288-3-11 |
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