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. 2009 Aug 28;10:271. doi: 10.1186/1471-2105-10-271

Table 3.

Models produced by Stepwise Binary Logistic Regression Iteration and M2 Cross-Validation.

SBLR Model M0 M1 M2 M3 M2 Cross-Validation
Training Set
Deletion
none CT665
CT681a
CT681b
CT743
CT665
CT681a
CT681b
CT681a
CT681b
CT665
CT681a
CT681b

Variables in Modela +HMM_SCORE
+STABLE1_37
-POSITION
+CURVE_L32
-GC_L128
+RIGID_L96
+CURVE
+HMM_SCORE
+STABLE1_37
-GC_L32
-POSITION
+CURVE_L32
-CURVE_L64
-GC_L128
+TWIST
+HMM_SCORE
+STABLE1_37
-POSITION
+CURVE_L32
-STABLE_L32
+SIDD_H24
-CURVE_L128
-SIDD_L128
+RIGID_L96
+HMM_SCORE
+STABLE1_37
-POSITION
+CURVE_L32
-STABLE_L32
-STABLE27_37
+CURVE

Sensitivity or Recall 19/29
(0.655)
25/25
(1.0)
26/26
(1.0)
25/27
(0.926)
23/26
(0.885)

Specificity 2426/2428
(0.999)
2083/2083
(1.0)
2226/2226
(1.0)
2322/2323
(1.0)
2215/2226
(0.995)

PPV or
Precision
19/21
(0.905)
25/25
(1.0)
26/26
(1.0)
25/26
(0.962)
23/34
(0.676)

NPV 2426/2436
(.996)
2083/2083
(1.0)
2226/2226
(1.0)
2322/2324
(0.999)
2215/2218
(0.999)

Accuracy 2445/2457
(0.995)
2108/2108
(1.0)
2252/2252
(1.0)
2347/2350
(0.999)
2238/2252
(0.994)

AUCb 0.995 1.0 1.0 0.999 0.992

aThe variables are listed in order of entrance into the model and the sign indicates the sign of the coefficient.

bROC analysis Area Under the Curve