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Table 1 Patient characteristics of the study population

From: Prescription of respiratory medication without an asthma diagnosis in children: a population based study

  Total study population (74,580) Asthma medication users (5,605) Children with doctor-diagnosed asthma (3,064)
  N % N % N %
Gender
   Male 38,267 51.3 3,160 56.4 1,775 57.9
   Female 36,313 48.7 2,445 43.6 1,289 42.1
Age (years)
   0–2 9,030 12.1 1053 18.8 540 17.6
   3–5 12,690 17.0 1300 23.2 689 22.5
   6–8 13,357 17.9 1004 17.9 589 19.2
   9–11 13,521 18.1 853 15.2 490 16.0
   12–14 13,087 17.6 738 13.2 445 14.5
   15–17 12,895 17.3 657 11.7 311 10.2
Other respiratory problems
   shortness of breath 367 0.5 240 4.3 101 3.3
   wheezing 176 0.2 144 2.6 46 1.5
   acute URTI* 6307 8.5 1122 20.0 530 17.3
   acute bronchitis/bronchiolitis 2269 3.0 1002 17.9 406 13.3
   pneumonia 679 0.9 254 4.5 129 4.2
   allergic rhinitis 1983 2.7 394 7.0 223 7.3
Number of contacts with GP
   0 22784 30.5 240 4.3 0 0
   1–2 26725 35.8 1314 23.4 658 21.5
   ≥3 25071 33.6 4051 72.3 2406 78.5
Oral corticosteroid use 337 0.5 188 3.4 143 4.7
At least 1 parent with doctor-diagnosed asthma^ 3106 4.3 483 8.9 312 10.5
  1. * URTI = Upper Respiratory Tract Infection
  2. ^ Based on data from 96% of the study population due to missing values (N = 71712)
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