Table 1

Characteristics of the study population and level of additional height index

Characteristics (n missing)Level of AHI (cm)
Percentage of all (n group)MeanSDp Value*,†
Age and gender
 4130.3 (576)2.685.61
 5129.5 (560)1.165.61
 6124.7 (469)0.115.61
 7115.5 (295)−1.815.61<0.001
 Males51.4 (977)0.905.88
 Females48.6 (923)0.905.530.003
Body mass index
 <18.5 (kg/m2)0.7 (14)0.485.45
 ≥18.5 to <25 (kg/m2)46.1 (875)1.065.81
 ≥25 to <30 (kg/m2)38.5 (732)1.075.70
 ≥30 (kg/m2)14.7 (279)−0.035.36<0.001
Smoking
 Current45.3 (859)0.935.77
 Former27.8 (527)0.765.76
 Never26.9 (510)1.015.570.032†
Alcohol (10)
 None12.9 (243)0.375.67
 ≦14 units/week63.1 (1193)0.835.71
 >14 units/week24 (454)1.395.750.109†
Vocational training
 Level 119.6 (373)−0.265.87
 Level 256.1 (1066)0.925.67
 Level 319 (360)1.715.58
 Level 45.3 (101)2.065.310.132†
Physical activity leisure time (24)
 Sedentary20.6 (387)0.615.45
 Walking56.2 (1054)0.925.76
 Active/competition23.2 (435)1.165.86<0.001
Allergic sensitisation‡ (171)
 Not present80.8 (1397)0.915.78
 Present19.2 (332)1.415.49<0.001
Atopic dermatitis (4)
 Not present97.5 (1849)0.885.73
 Present2.5 (47)1.725.06<0.001
Allergic rhinoconjunctivitis (14)
 Not present95.1 (1793)0.895.72
 Present4.9 (93)1.575.56<0.001
Wheezing (7)
 Present no allergies3 (56)−1.315.33
 Not present96.5 (1827)−0.765.80
 Present and allergies present0.5 (10)2.367.58<0.001
Physician diagn. Asthma (6)
 Present no allergies1.9 (36)−2.585.59
 Not present97.2 (1841)−1.336.17
 Present and allergies present0.9 (16)1.816.56<0.001
IHD event (46)
 Not present89.8 (1665)1.085.76
 Present10.2 (189)0.125.090.083
IHD death (46)
 Not present88.7 (1645)0.985.71
 Present11.3 (209)−1.395.360.310
  • p Value obtained by:

  • 2 test or

  • †χ2 test for trend.

  • ‡Positive test to ADIVIA Centaur Allergy Screen.29

  • AHI, additional height index; diagn., diagnosed; IHD, ischaemic heart disease