Allele frequencies
| Controls | Asthma | Wheezy infants | |
| TNF-α-308 | |||
| Subjects n | 149 | 108 | 50 |
| G | 79 | 70# | 65# |
| A | 21 | 30# | 35# |
| LT-α+252 | |||
| Subjects n | 148 | 101 | 48 |
| G | 59 | 47# | 34** |
| A | 41 | 53# | 66** |
Data are presented as per cent unless otherwise stated. TNF-α-308: tumour necrosis factor-α-308 genotype; LT-α+252: lymphotoxin-α+252 genotype; #: p = 0.04; **: p<0.01. p-values reflect the whole ratio compared to controls.