There was a significant association for preterm birth in women with coeliac disease (OR 1.30 (1.13–1.50)), IBD (OR 1.81 (1.37–2.38)), psoriatic diseases (psoriasis OR 1.22 (1.04–1.42), psoriatic arthritis OR 1.48 (1.24–1.78)), rheumatoid arthritis (OR 1.57 (1.00, 2.48)), and systemic sclerosis (OR 2.40 (1.14–4.86)) and for thyroid autoimmunity (all) (OR 1.88 (1.32–2.67) and thyroid autoimmunity (TPO) (OR 1.33 (1.15–1.56)) when compared to women without these conditions [29, 31, 32, 35, 97, 109, 110, 117, 128, 131]. Here, TPO is linked to rheumatoid arthritis.