Individual | Work-related symptoms* | Specific IgE sugar beet pollen (kU/l)§ | Other specific IgE (kU/l)
§ $
| SPT to sugar beet pollen extract # | SPT to standard allergens& | Age/sex |
|---|
1 | - | <0.35 | - | - | - | 44/M |
2 | + | 4.2 | a,b | + | e | 50/F |
3 | + | 1.3 | a,c | + | e,f,g,h,i | 28/F |
4 | + | 2.4 | a,b | + | f, j | 54/F |
5 | + | <0.35 | - | - | - | 41/F |
6 | - | <0.35 | - | - | - | 41/F |
7 | + | <0.35 | - | - | g,i | 29/M |
8 | + | <0.35 | - | - | - | 48/M |
9 | + | <0.35 | - | - | - | 40/M |
10 | + | <0.35 | - | - | - | 37/M |
11 | + | 1.8 | a | + | - | 59/F |
12 | + | 1.0 | a,b | + | - | 54/F |
13 | - | <0.35 | - | + | - | 60/M |
14 | + | 2.5 | - | + | g,h,k | 27/F |
15 | + | 11.8£ | a,b,c | + | f,g,h,j,k | 18/F |
Negative control 1 | Not relevant | <0.35 | - | n.d | n.d. | 45/F |
Negative control 2 | Not relevant | <0.35 | - | n.d. | n.d. | 54/M |
- Data shown for 15 out of 31 greenhouse workers exposed to sugar beet pollen, and for two individuals, designated Negative control 1 and 2, neither working at the site nor exposed.
- * Work-related symptoms of allergy, such as rhinitis (in 11 of 12 individuals), dermatitis (5/12) and symptoms in lower respiratory tract (2/12).
- §Specific IgE determined with ImmunoCAP™ (Phadia, Uppsala, Sweden): Sugar beet w210 Data derived from the same serum samples as used in Fig 1, taken November 2005, except one individual that was sampled in September 2006£. Specific IgE data was also determined in serum samples taken November 2004, with values similar or slightly higher than in November 2005.
- $ Values for specific IgE against a-c were always lower than for sugar beet pollen, usually 5-fold lower. Data derived from serum samples taken November 2004, a = w11 Salsola, b = w15 Atriplex, c = w10 Chenopodium, where Salsola = Saltwort, also called Russian thistle; Atriplex = Lenscale; Chenopodium = Lambsquarter, also called Goosefoot or wild spinach.
- # SPT performed with histamine (10 mg/ml) as positive control (+++). Wheel sizes were in same size as histamine (++, +++, ++++) but positivity is here only noted as +, as compared to negativity (-).
- & SPT (skin prick test) performed with standard allergens (Phadia, Uppsala, Sweden): e = mugworth, f = birch pollen, g = timothy, h = cat, i = dust mite, j = horse, k = dog
