Table 1.
Counts and Proportions of Chronic Inflammatory Diseases by Mode of Delivery
| Full Period 1973–2016 (N=2,672,708 Births) | ||
|---|---|---|
| Vaginal Delivery | CS | |
| Total | 2,271,913 (85.0%) | 400,795 (15.0%) |
| DM | 20,936 (87.7%) | 2,932 (12.3%) |
| RA | 9,075 (86.7%) | 1,395 (13.3%) |
| CD | 6,085 (85.3%) | 1,047 (14.7%) |
| Crohn’s disease | 8,051 (87.9%) | 1,104 (12.1%) |
| Ulcerative colitis | 11,436 (88.9%) | 1,428 (11.1%) |
| IBD (Crohn’s disease + ulcerative colitis) | 17,293 (88.5%) | 2,240 (11.5%) |
| Combined (at least one) | 51,926 (87.5%) | 7,405 (12.5%) |
| DM & RA | 225 (89.6%) | 26 (10.4%) |
| DM & CD | 400 (83.2%) | 81 (16.8%) |
| DM & IBD | 383 (89.1%) | 47 (10.9%) |
| RA & CD | 58 (87.9%) | 8 (12.1%) |
| RA & IBD | 227 (91.5%) | 21 (8.5%) |
| CD & IBD | 202 (86.7%) | 31 (13.3%) |
| Dead | 25,067 (79.7%) | 6,392 (20.3%) |
| Emigrated | 73,661 (87.4%) | 10,661 (12.6%) |
Notes: The disease combinations do not sum up to the “Combined” count, as 35 persons in the full cohort experienced more than two of the diseases.
Abbreviations: CD, Coeliac disease; CS, Caesarean section; DM, Diabetes mellitus; IBD, Inflammatory bowel disease; RA, Rheumatoid arthritis.