Table 3 Sensitivity, specificity and positive predictive values for serum total testosterone cut-off points for predicting 5 year risk of T2D in men

<10 vs ≥10

16.1 (10.5,23.5)

93.4 (91.9,94.6)

19.6 (13.0,28.4)

<11 vs ≥11

24.1 (17.4,32.3)

89.0 (87.2,90.6)

18.0 (12.9,24.5)

<12 vs ≥12

28.5 (21.3,36.9)

83.8 (81.8,85.7)

15.1 (11.0,20.1)

<13 vs ≥13

37.2 (29.2,45.9)

77.9 (75.6,80.1)

14.4 (11.1,18.7)

<14 vs ≥14

44.5 (36.1,53.2)

71.4 (68.9,73.8)

13.6 (10.6,17.1)

<15 vs ≥15

54.7 (46.0,63.2)

65.6 (63.0,68.1)

13.8 (11.0,17.0)

<16 vs ≥16

61.3 (52.6,69.4)

58.3 (55.6,60.9)

12.9 (10.4,15.8)

<17 vs ≥17

68.6 (60.0,76.1)

51.2 (48.6,53.9)

12.4 (10.2,15.0)

<18 vs ≥18

75.9 (67.7,82.6)

43.5 (40.9,46.2)

11.9 (9.9,14.3)

<19 vs ≥19

80.3 (72.4,86.4)

37.2 (34.7,39.9)

11.4 (9.5,13.6)

<20 vs ≥20

82.5 (74.9,88.2)

31.3 (28.8,33.8)

10.8 (9.0,12.8)