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Table 4 Relative change in R 0 from the regular to the holiday period, all contacts (column 3 and 4) and close contacts (column 5 and 6). '*' indicating a significant relative change in R 0.

From: Estimating the impact of school closure on social mixing behaviour and the transmission of close contact infections in eight European countries

   

All contacts

Close contacts

Country

Number of participants in Holiday vs Regular period

Total No.

Relative Change in R 0

95% Bootstrap CI

Relative Change in R 0

95% Bootstrap CI

BE

308/438^

746

0.83*

(0.76, 0.87)

0.90*

(0.86, 0.98)

GBË 

371/597

968

0.87*

(0.80, 0.98)

0.83*

(0.78, 0.91)

GB†

100/868

968

0.95

(0.89, 1.17)

0.86

(0.82, 1.06)

LU

120/873

993

0.87

(0.85, 1.03)

0.90

(0.89, 1.03)

NLË 

40/217

257

0.60*

(0.56, 0.74)

0.55*

(0.49, 0.63)

NL†

39/218

257

0.60*

(0.56, 0.74)

0.55*

(0.49, 0.63)

NL†

27/230

257

0.51*

(0.49, 0.67)

0.51*

(0.46, 0.69)

  1. ^ This is a random selection of the Belgian survey, which was the only one registering two days of contacts per participant. Based on the complete Belgian survey published by Hens et al[7], the relative change in R 0 was found to be 0.85, or a 15% reduction in R 0 for holiday versus regular period.
  2. Ë  Holiday period encompasses holiday periods for all regions (GB: 01/04-24/04; NL: 18/02-05/03)
  3. † Holiday period was defined as the holiday period for one of the regions whereas the data from the other region was considered to come from a regular period (GB: 10/04-21/04; NL: 18/02-26/02 and 25/02-05/03, respectively).