Table 4. Correlation between expression of Rab proteins and litter size after capacitation

Litter size ≥ 14 Litter size < 14
Rab3A
 Expression of Rab3A ≤ 0.1008 15 11
 Expression of Rab3A > 0.1008 2 4
 Sensitivity 88.24
 Specificity 26.67
 Negative predictive value 66.67
 Positive predictive value 57.69
 Overall accuracy 59.38
Rab4
 Expression of Rab4 ≤ 0.0953 12 1
 Expression of Rab4 > 0.0953 4 14
 Sensitivity 75.00
 Specificity 93.33
 Negative predictive value 77.78
 Positive predictive value 92.31
 Overall accuracy 83.87
Rab5
 Expression of Rab5 ≤ 0.1012 10 3
 Expression of Rab5 > 0.1012 6 12
 Sensitivity 62.50
 Specificity 80.00
 Negative predictive value 66.67
 Positive predictive value 76.92
 Overall accuracy 70.97
Rab8A
 Expression of Rab8A ≤ 0.1005 11 1
 Expression of Rab8A > 0.1005 7 14
 Sensitivity 61.11
 Specificity 93.33
 Negative predictive value 66.67
 Positive predictive value 91.67
 Overall accuracy 75.76
Rab9
 Expression of Rab9 ≤ 0.0977 15 8
 Expression of Rab9 > 0.0977 3 5
 Sensitivity 83.33
 Specificity 38.46
 Negative predictive value 62.50
 Positive predictive value 65.22
 Overall accuracy 64.52
Rab14
 Expression of Rab14 ≤ 0.0987 12 5
 Expression of Rab14 > 0.0987 4 10
 Sensitivity 75.00
 Specificity 66.67
 Negative predictive value 71.43
 Positive predictive value 70.59
 Overall accuracy 70.97
Sensitivity = [A / (A + C)] × 100; Specificity = [D / (B + D)] × 100; Positive predictive value = [A / (A + B)] × 100; Negative predictive value = [C / (C + D)] × 100; and overall accuracy = [(A + D) / (A + B + C + D)] × 100.