Table 2 Autofluorescence signal ratio (R) in normal and RC subjects

Mean

SD

95% Confidence interval

Mean

SD

95% Confidence interval

 R1

1.50

0.88

1.26–1.83

0.78

0.20

0.72–0.85

 R2

1.23

0.54

0.36–2.61

0.61

0.20

0.54–0.67

 R3

4.73

2.85

3.93–5.76

1.62

0.39

1.50–1.74

 R1

1.68

1.02

1.48–1.91

0.95

0.59

0.83–1.09

 R2

1.66

1.15

1.42–1.93

0.79

0.45

0.70–0.89

 R3

7.27

6.82

5.98–8.78

2.50

1.65

2.19–2.86