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Table 7 Comparison of handwashing patterns

From: Changes in handwashing and hygiene product usage patterns in Korea before and after the outbreak of COVID-19

Study Handwashing Period P5 P25 P50 P75 P95 Mean SD
This study Frequency Pre 2.00 4.00 6.00 9.00 15.00 6.96 4.52
Frequency Post 3.00 5.00 8.00 12.00 22.00 9.98 7.27
Time Pre 3.00 8.00 13.33 23.33 60.00 20.16 24.15
Time Post 5.00 11.67 21.67 31.04 95.25 31.58 38.71
Korean Exposure Factors Handbook (2019) Frequency Summer 3.00 5.00 7.00 10.00 5.60 2.80
Frequency Winter 3.00 4.00 5.00 10.00 4.60 2.40
Time Summer 54.00 60.00 120.00 180.00 78.00 48.00
Time Winter 30.00 60.00 120.00 180.00 78.00 48.00
USEPA (2011) Frequency 0.14–2.57
Norden (2012) Frequency 3–6