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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)