Z scores (mean (SEM)) of carriers and non-carriers of allele 2 at the IL1B+3954 and the IL1RN variable number of tandem repeat (VNTR) polymorphic sites in inflammatory bowel disease patients
| Non-carriers of allele 2 | Carriers of allele 2 | p Value | |
| IL1B TaqI site | |||
| No patients | 51 | 24 | |
| Lumbar spine (L2–L4) | −0.74 (0.15) | −0.46 (0.17) | NS |
| Femoral neck | −0.38 (0.15) | −0.29 (0.19) | NS |
| Radius distal | −0.77 (0.16) | −0.52 (0.20) | NS |
| IL1RNVNTR site | |||
| No patients | 37 | 38 | |
| Lumbar spine (L2–L4) | −0.64 (0.17) | −0.67 (0.15) | NS |
| Femoral neck | −0.26 (0.15) | −0.43 (0.18) | NS |
| Radius distal | −0.55 (0.17) | −0.81 (0.19) | NS |