Table 1 Summary of patient characteristics, including breakdowns by region

From: Deep learning versus human graders for classifying diabetic retinopathy severity in a nationwide screening program

Region

All regions

1

2

3

4

5

6

7

8

9

10

11

12

13

Grader type

 

MD

MD

MD

MD

MD

MD

Nurse

MD

Nurse

Nurse

Nurse

Nurse

Tech

Total patients

7517

100

620

569

440

513

620

680

1005

750

370

500

250

1000

Total images

29,985

764

2467

2256

1760

2051

2424

2720

4020

2989

1582

1986

968

3998

% No/Mild NPDR

87.83

68.30

92.32

94.02

92.95

87.85

88.81

82.85

82.10

89.62

75.24

92.45

86.67

93.81

% Moderate NPDR

9.80

23.84

5.65

5.35

5.17

7.40

8.77

12.53

16.21

8.14

20.06

6.15

10.75

5.39

% Severe NPDR

0.81

3.23

0.60

0.19

0.77

0.56

0.75

1.38

0.57

1.30

1.16

0.27

1.34

0.40

% PDR

1.57

4.63

1.43

0.43

1.12

4.18

1.67

3.24

1.11

0.94

3.55

1.14

1.23

0.40

% Referable DME

6.23

17.41

3.08

3.50

3.30

4.00

7.47

8.68

8.81

6.62

15.42

3.83

6.20

2.30

% Female

69

66

61

67

68

65

69

69

77

71

64

75

63

68

% Male

31

34

39

33

32

35

31

31

23

29

36

25

37

32

Age

59 (52, 66)

58 (53, 64)

57 (50, 63)

59 (52, 66)

63 (57, 70)

62 (54, 70)

58 (51, 65)

62 (54, 68)

59 (53, 66)

56 (49, 64)

56 (49, 64)

63 (56, 71)

56 (50, 61)

59 (51, 67)

HbA1c (%)

7.3 (6.5, 8.6)

7.6 (6.9, 8.5)

7.0 (6.4, 8.2)

7.3 (6.4, 8.5)

7.2 (6.5, 8.4)

7.2 (6.3, 8.5)

7.2 (6.5, 8.1)

7.7 (6.8, 9.3)

7.6 (6.5, 9.1)

7.2 (6.3, 8.5)

8.4 (7.3, 9.8)

7.2 (6.5, 8.2)

8.1 (7.1, 9.6)

7.0 (6.3, 8.0)

FBS (mg/dL)

139 (118, 169)

130 (110, 172)

136 (118, 168)

138 (115, 166)

133 (114, 156)

150 (126, 181)

140 (122, 175)

140 (118, 199)

144 (121, 172)

133 (107, 170)

149 (122, 188)

131 (115, 154)

149 (130, 186)

136 (118, 163)

LDL (mg/dL)

105 (83, 130)

117 (107, 147)

113 (90, 135)

102 (79, 124)

101 (81, 128)

94 (75, 120)

103 (80, 129)

102 (93, 122)

109 (86, 132)

107 (86, 131)

104 (85, 124)

96 (73, 119)

118 (96, 142)

108 (88, 132)

  1. For blood sample measures and visual acuity, values reflect the distribution across patients at first visit. Numeric values indicate the median across a distribution; values in parentheses indicate the 25th and 75th percentiles.
  2. MD ophthalmologist, DME diabetic macular edema, NPDR non-proliferative diabetic retinopathy, PDR proliferative diabetic retinopathy, HbA1c hemoglobin A1c, FBS fasting blood glucose, LDL low-density lipoprotein
Back to article page