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Table 2 Details of follow-up of the first 18 months of the cohort study

From: Prediction and treatment of asthma in preschool children at risk: study design and baseline data of a prospective cohort study in general practice (ARCADE)

  Number of children invited to perform measurement Number of children that performed measurement
Questionnaire   
   Baseline – symptoms and QoLa 771 718 (93.1)
   Follow-up at 6 months – QoLa 755 643 (85.2)
   Follow-up at 12 months – symptoms and QoLa 707 551 (77.9)
   Follow-up at 18 months – QoLa 610 450 (73.8)
Total and specific IgE measurement b 771 670 (86.9)
NO-measurements c 131 114 (87.0)
PEF-measurements d 131 117 (89.3)
  1. Numbers are n (percentages in parentheses)
  2. a QoL: Quality of Life measurement
  3. b IgE: Immunoglobulin E
  4. c NO: Nitric oxide measurement
  5. d PEF: Peak Flow measurement