| | | Inflammatory bowel disease (n = 2466 births) | Noninflammatory bowel disease (n = 1,280,493 births) | Total (n = 1,282,959 mothers) |
| | Age at conception (mean ± SD) | 28.9 ± 4.5 | 28.8 ± 5.4 | 28.8 ± 5.4 |
| | Mean neighbourhood Income quintile (n, %) | | Q1 (lowest) | 369 (15.0%) | 294,035 (23.0%) | 294,404 (22.9%) | | Q2 | 459 (18.6%) | 262,666 (20.5%) | 263,125 (20.5%) | | Q3 | 538 (21.8%) | 258,098 (20.2%) | 258,636 (20.2%) | | Q4 | 632 (25.6%) | 256,696 (20.0%) | 257,328 (20.1%) | | Q5 (highest) | 462 (18.7%) | 202,489 (15.8%) | 202,951 (15.8%) |
| | Number of patients included per LHIN (n, %) | | Erie St. Clair (LHIN 1) | 129 (5.2%) | 61,968 (4.8%) | 62,097 (4.8%) | | South West (LHIN 2) | 212 (8.6%) | 87,879 (6.9%) | 88,091 (6.9%) | | Waterloo Wellington (LHIN 3) | 151 (6.1%) | 74,249 (5.8%) | 74,400 (5.8%) | | Hamilton Niagara Haldimand Brant (LHIN 4) | 314 (12.7%) | 124,774 (9.7%) | 125,099 (9.7%) | | Central West (LHIN 5) | 135 (5.5%) | 101,142 (7.9%) | 101,277 (7.9%) | | Mississauga Halton (LHIN 6) | 204 (8.3%) | 114,474 (8.9%) | 114,678 (8.9%) | | Toronto Central 7 (LHIN 7) | 195 (7.9%) | 133,558 (10.4%) | 133,753 (10.4%) | | Central (LHIN 8) | 262 (10.6%) | 170,466 (13.3%) | 170,728 (13.3%) | | Central East (LHIN 9) | 248 (10.1%) | 147,513 (11.5%) | 147,761 (11.5%) | | South East (LHIN 10) | 90 (3.6%) | 39,429 (3.1%) | 39,519 (3.1%) | | Champlain (LHIN 11) | 250 (10.1%) | 118,216 (9.2%) | 118,466 (9.2%) | | North Simcoe Muskoka (LHIN 12) | 87 (3.5%) | 37,759 (2.9%) | 37,846 (2.9%) | | North East (LHIN 13) | 149 (6.0%) | 46,045 (3.6%) | 46,194 (3.6%) | | North West (LHIN 14) | 40 (1.6%) | 21,580 (1.7%) | 21,620 (1.7%) |
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