Table 3 |
||||
|
Physicians' ability (c = 58) to correctly guess the diagnosis for different patients' factors (n = 626). |
||||
|
Mean physicians' predictive ability |
Odds Ratio adjusted for cluster effects |
Differences between GP |
||
|
% (SD) |
ORCE (95% CI) |
p-value |
ρ* |
|
|
|
||||
|
Patients' age |
||||
|
<50 yrs (n = 257) |
56.4% (1.8%) |
1.4 (0.98 to 2.0) |
p = 0.066 |
ρ = 0.096 |
|
≥50 yrs (n = 369) |
50.4% (1.3%) |
- |
- |
|
|
Patients' gender |
||||
|
Men (n = 304) |
50.7% (1.5%) |
0.93 (0.67 to 1.3) |
p = 0.680 |
ρ = 0.089 |
|
Women (n = 322) |
55.0% (1.5%) |
- |
- |
|
|
Known patient |
||||
|
Yes (n = 569) |
53.1% (0.9%) |
1.3 (0.72 to 2.4) |
p = 0.386 |
ρ = 0.088 |
|
No (n = 57) |
47.4% (4.9%) |
- |
- |
|
|
New Complaint |
||||
|
Yes (n = 301) |
48.5% (1.5%) |
0.78 (0.56 to 1.1) |
p = 0.158 |
ρ = 0.088 |
|
No (n = 325) |
54.2% (1.2%) |
- |
- |
|
|
Patient feeling anxious |
||||
|
Yes (n = 348) |
44.8% (1.3%) |
0.46 (0.33 to 0.65) |
p < 0.0001 |
ρ = 0.090 |
|
No (n = 278) |
62.9% (1.5%) |
- |
- |
|
|
Life threatening |
||||
|
Yes (n = 104) |
65.4% (3.5%) |
1.8 (1.1 to 2.8) |
p = 0.015 |
ρ = 0.087 |
|
No (n = 522) |
50.3% (0.1%) |
- |
- |
|
|
|
||||
|
* ρ is the intraclass correlation coefficient (ICC) which corresponds to the proportion of the total observed variance which is related to the lack of independence between measures taken from the same physician. A value of 0 indicates no differences between physicians whereas a value of 1 indicates that the associations are totally dependent on physicians. |
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|
Verdon et al. BMC Family Practice 2010 11:14 doi:10.1186/1471-2296-11-14 |
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