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Table 2 Descriptive statistics for environmental variables in Seoul, South Korea, 2010–2014

From: Temperature as a risk factor of emergency department visits for acute kidney injury: a case-crossover study in Seoul, South Korea

Environmental variables Mean (SD)
Overall Warm Cool
Mean temperature (°C) 12.49 (11.03) 21.16 (5.75) 3.79 (7.71)
Mean relative humidity (%) 60.43 (15.15) 65.01 (15.20) 55.84 (13.64)
Mean pressure (hPa) 1005.86 (7.74) 1000.27 (5.40) 1011.48 (5.29)
Mean PM10 (μg/m3) 47.08 (27.35) 42.28 (25.06) 51.91 (28.68)