Table 1 Patient characteristics

 Median (range)

65(42–87)

62(24–85)

  < 65

20(49)

99(58)

0.38^d

 Male

28(68)

79(46)

0.014^d

 0

15(37)

66(38)

0.52^e

 1

18(44)

83(48)

 2

7(17)

16(9.3)

 3

1(2.4)

7(4.1)

 Median (range)

71.2(39.5–98.0)

74.9(31.8–99.8)

  < 50

3(7.3)

18(11)

0.77^d

 Median (range)

1.1(0.2–2.1)

0.9(0.1–2.4)

  < 2

39(95)

162(94)

1.0^d

 Low (< 10%)

25(61)

104(61)

0.92^e

 Moderate (10 to < 20%)

13(32)

52(30)

 High (≥20%)

3(7.3)

16(9.3)

 II

8(20)

25(15)

0.072^e

 III

9(22)

71(41)

 IV

24(59)

76(44)

 Use

6(15)

22(13)

0.80^d

 High risk (≤20)

16(39)

77(45)

0.60^d

 Positive

6(15)

13(7.6)