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Table 1 Details of survey methodology in each country together with school and public holiday+ periods within the sampling period ([6] and EURYDICE).

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

Country

BE

DE

FI

GB

IT

LU

NL

PL

Over what time period was the survey conducted?

March-May 2006

January-February, May-July 2006

March-June 2006

April-May 2006

May-June 2006

May 2005, January-March, May 2006

February-September 2006

March-April 2006

Were participants instructed not to record professional contacts (eg, with clients) in the diary?

Yes, if estimated at more than 20

Yes, if estimated at more than 10*

Yes, if estimated at more than 10

No

No

No

Yes, if estimated at more than 10

No

Maximum number of contact entries in the diary?

90

73

34

29

45

55

45

45

Holidays **

Year-2006

Winter holidays: 27/02-03/03,

Spring time holidays/Easter: 03-17/03,

Public holidays: 01/05, 25/05

Year-2006

Christmas/new year: 7 to 13 days staggered between 21/12-07/01,

Winter holidays: 0 to 12 days staggered between

30/01-03/03, 3rd term holidays: 0 to 11 days staggered between 22/05-17/06,

Summer: 6 weeks staggered between 26/06-16/09,

Public holidays: 01/01, 01/05, 25/05, 05/06, 15/06

Year-2006

Winter holidays: 20/02-11/03,

Spring time holidays/Easter:13-17/04,

Summer: 03/06-mid August,

Public holidays: 01/05, 25/05

Year-2006

1. England and Wales: Spring time holidays/Easter: 03-14/04 or 10-21/04,

2. Scotland Spring time holidays/Easter: 31/03-24/04

Public holidays: 01/05

Year-2006

Public holidays: 01/05, 02/06

Year-2005

14-21/05 Public holidays: 01/05, 05/05,

Year-2006 Christmas/new year: 24/12-08/01,

Winter holidays:25/02-05/03,

Public holidays: 01/05,25/05

Year-2006

Winter holidays: 1. North/Central: 18/02-26/02,

2. South 25/02-05/03,

3rd term: 29/04-07/05,

Summer: 01/07-03/09,

Public holidays: 17/04, 30/04, 05/05, 25/05, 05/06,

Year-2006

Spring time holidays/Easter: 13-18/04

  1. * Note that for DE no participants recorded more than 10 professional contacts.
  2. ** Holidays with in the sampling period.
  3. + Weekends inside or adjacent to a larger holiday period were considered as holiday period.