Characteristics of study population at baseline, and proportion of breastfeeding. Values are mean ± SD or n (%) unless otherwise specified.
| Characteristics | Values |
|---|---|
| Basic characteristics, n = 86 | |
| Age, yrs | 28.7 ± 4.9 |
| Disease duration, yrs | 20.0 ± 6.9 |
| Body mass index | 24.4 ± 4.0 |
| Smoking | 5 (5.9) |
| Nulliparous* | 41 (47.7) |
| Clinical characteristics, n = 86 | |
| RF present | 11 (12.8) |
| ACPA present | 15 (17.4) |
| ANA present | 11 (12.8) |
| History of enthesitis | 1 (1.2) |
| History of sacroiliitis | 2 (2.3) |
| History of psoriatic skin disease | 1 (1.2) |
| History of organ affection | 1 (1.2) |
| Breastfeeding, n/N (%) | |
| 6 wks after delivery | 86/111 (77.5) |
| 6 mos after delivery | 38/82 (46.3) |
| 1 yr after delivery | 10/80 (12.5) |
↵* Has never given birth to a live child. ACPA: anticyclic citrullinated peptide antibodies; ANA: antinuclear antibodies; RF: rheumatoid factor.