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Table 3 Average age of Influenzanet participants and comparison with the national statistics (all p < 10 –5 , except * p = 0.5, †0.01 < p < 0.03, ††0.001 < p < 0.006)

From: The representativeness of a European multi-center network for influenza-like-illness participatory surveillance

Gender

Influenzanet country

Influenzanet

General population

  

Years (95% CI)

Years

All

BE

52.8 (52.3 – 53.3)

42.0

FR

52.0 (51.5 – 52.5)

48.6

IT††

45.9 (45.0 – 46.9)

44.3

NL

51.6 (51.3 – 51.9)

40.8

PT

44.9 (44.0 – 45.9)

39.7

SE

43.7 (42.8 – 44.5)

41.7

UK

47.0 (46.2 – 47.8)

40.5

Female

BE

49.0 (48.3 – 49.7)

43.3

FR

50.8 (50.2 – 51.4)

41.2

IT†

43.7 (42.3 - 45.2)

45.6

NL

49.7 (49.3 – 50.0)

41.6

PT*

42.4 (41.0 – 43.8)

41.9

SE††

44.3 (43.3 – 45.3)

42.9

UK

45.5 (44.6 – 46.5)

41.5

Male

BE

56.0 (55.4 – 56.7)

40.7

FR

54.3 (53.4 – 55.2)

38.2

IT

47.5 (46.3 – 48.8)

43.0

NL

54.3 (53.9 – 54.8)

40.0

PT

47.5 (46.1 – 48.9)

37.6

SE†

42.5 (40.8 – 44.2)

40.6

 

UK

49.4 (48.0 – 50.7)

39.4