Skip to main content

Table 1 Details of subjects at entry

From: The Darlington and Northallerton Long Term Asthma Study: pulmonary function

   Male Female
n 457 455
Age (years)(sd) 50.4(15.4) 49.3(16.3)
Duration of asthma (years)(sd) 17.0(16.2) 18.6(15.4)
Atopic n(%) 258(56.5) 227(49.9)
Asthma n(%) childhood 124(27.1) 131(28.8)
  gap 53(11.6) 42(9.2)
  adult 280(61.3) 282(63.3)
Social Class n(%) 1–2 131(28.8) 139(30.5)
  3 168(36.9) 180(39.6)
  4–5 156(34.3) 136(29.9)
Smoking Habit n(%) never 147(32.2) 247(54.3)
  ever 239(52.3) 161(35.4)
  current 71(15.5) 47(10.3)
Pulmonary Function(sd) Actual FEV1 l. 2.50(1.09) 1.97(0.79)
  Best FEV1 l. 2.60(1.08) 2.08(0.82)
  Best FVC l. 4.17(1.25) 3.05(0.84)
  Best PEF l/min 465.7(113.7) 382.0(85.1)
  Actual/Best PEF % 84.4(13.7) 83.2(15.9)