Table 1 Socio-demographic and medical characteristics of the cohort

Age* (n = 1080)

34.7 ± 12.7 years

Sex (n = 1046)

  Male

41.1%

  Female

58.9%

Occupation (n = 1065)

  Employee

32.0%

  Student

17.8%

  Manager/intellectual professional

12.6%

  Intermediate professional

9.8%

  Other

27.8%

Time from allergic rhinitis onset* (n = 1034)

9.8 ± 9.7 years

Familial history of allergy (n = 1065)

56.4%

Periodicity of allergic rhinitis (n = 995)

  Persistent

63.2%

  Intermittent

36.8%

Severity of symptoms (ARIA) (n = 884)

  Mild

18.0%

  Moderate to severe

82.0%

Concomitant disease

  Conjunctivitis (n = 1070)

70.9%

  Asthma (n = 1064)

26.0%

  Other allergies (n = 1072)

16.6%

  Atopic eczema (n = 1064)

6.4%

  Sinusitis (n = 1064)

7.8%

  Urticaria (n = 1064)

9.5%

Smoking (n = 1065)

  Active

16.3%

  Passive

5.6%

  Ceased

8.5%

  No

69.6%

Regular contact with pet (n = 1048)

44.4%