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Table 2 Summary of estimated PM2.5 concentration (μg m− 3)

From: Correlation between exposure to fine particulate matter and hypertensive disorders of pregnancy in Shanghai, China

Gestational period Median (Q1 - Q3) P value
Total No HDP HDP
0–12 gestational weeks 54.6 (46.5–60.1) 54.4 (46.3–60.0) 57.2 (50.1–60.6) < 0.01
13–20 gestational weeks 52.0 (44.3–56.3) 52.0 (44.3–56.3) 52.1 (44.2–56.5) 0.68
0–20 gestational weeks 51.4 (47.3–57.8) 51.3 (47.3–57.8) 54.1 (47.8–58.3) 0.03