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Table 3 Dog extract data from HollisterStier and Stallergenes Greer

From: Comparison of weight per volume and protein nitrogen units in non-standardized allergen extracts: implications for prescribing subcutaneous immunotherapy

DOG

Corresponding PNU/mL

HollisterStier (n = 12)

Stallergenes Greer (n = 5)

Wt/volume (1:100)

Wt/volume (1:200)

Wt/volume (1:100)

Wt/volume (1:200)

A

 Lowest value

50.00

25.00

2400.00

1200.00

 Highest value

300.00

150.00

3700.00

1850.00

 Mean

208.33

104.17

3260.00

1630.00

 St. deviation

73.12

36.56

449.89

224.94

DOG

Corresponding diluent (mL)

HollisterStier (n = 12)

Stallergenes Greer (n = 5)

PNU (1000)

PNU (2000)

PNU (3000)

PNU (4000)

PNU (5000)

PNU (1000)

PNU (2000)

PNU (3000)

PNU (4000)

PNU (5000)

B

 Lowest value

5.00

2.50

1.67

1.25

1.00

240.00

120.00

80.00

60.00

48.00

 Highest value

30.00

15.00

10.00

7.50

6.00

370.00

185.00

123.33

92.50

74.00

 Mean

20.83

10.42

6.94

5.21

4.17

326.00

163.00

108.67

81.50

65.20

 St. deviation

7.31

3.66

2.44

1.83

1.46

44.99

22.49

15.00

11.25

9.00

  1. Corresponding PNU concentrations for a weight per volume of 1:100 and 1:200 are shown A, while corresponding diluent volumes for PNUs values from 1000 to 5000 are shown in B. These volumes represent the amount of diluent or buffer added to 1 g of allergen