Derivation of acronym:
(1) F = fire
(2) I = instrument flying due to meteorological conditions
(3) A = away from airport
The presence of each parameter was assigned 1 point.
The absence is assigned 0 points.
FIA =
= SUM(points for the parameters present)
Interpretation:
• minimum score: 0
• maximum score: 3
• The higher the score the greater the risk of pilot fatality in an aviation crash.
• The cutoff could be either >=1 (Youden index 0.35) or >= 2 (Youden index 0.34).
• The mortality rates for the FIA score varies on the type of airplane involved (air taxi/commuter, commercial, general).
|
FIA Score
|
Mortality (All Aviation Crashes)
|
|
0
|
3%
|
|
1
|
18%
|
|
2
|
62%
|
|
3
|
90%
|
estimated from Figure 1, page 1281
Performance:
• The area under the ROC curve was 0.86.
• The sensitivity at a cutoff >= 1 is 0.93 with a specificity 0.42.
• The sensitivity at a cutoff >= 2 is 0.47 with a specificity 0.87.
