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Fig. 4 | Arthritis Research & Therapy

Fig. 4

From: Pre-pregnancy serum complement C3 level is a predictor of preterm birth for pregnancies with systemic lupus erythematosus

Fig. 4

The relationship between the pre-pregnancy serum C3 level and the number of weeks of delivery in the cases of SLEDAI score ≤ 4. The preterm birth rate was significantly higher in the pre-pregnancy low C3 group (< 85 mg / dl) (42.1%) than that in the high C3 group (C3 ≥ 85 mg / dl) (14.7%) (P = 0.018). The number of weeks of delivery was 37 (35–38) in the low C3 group, which was significantly earlier than that in the high C3 group 38 (37–39) (P = 0.044)

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