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Table 2 Annual illness consultation in primary care and unplanned and ambulatory care sensitive (ACS) hospital admission ratesa

From: Impact of preventive primary care on children’s unplanned hospital admissions: a population-based birth cohort study of UK children 2000–2013

Number of children in cohort Infant (age < 1 year) Preschool (age 1–4 years) Primary school (age 5–9 years) Asthma diagnosis (age 5–9 years) Diabetes diagnosis (age 5–9 years) Epilepsy diagnosis (age 5–9 years)
N = 319,780 N = 289,989 N = 141,572 N = 12,654 N = 268 N = 670
Rate per child/year (95% confidence interval)
 Illness consultationb 4.01 (4.00–4.03) 2.91 (2.90–2.92) 1.33 (1.32–1.34) 2.18 (2.15–2.22) 2.02 (1.81–2.23) 2.22 (2.06–2.39)
Rate per 1000 child-years (95% confidence interval)
 Unplanned admissions 259 (256–261) 105 (104–107) 42 (40–44) 84 (77–91) 342 (279–405) 461 (365–558)
Infectious ACS admissions
 URTI 26.6 (25.9–27.2) 19.7 (19.3–20.1) 6.5 (6.2–6.8)    
 LRTI 36.1 (35.3–36.9) 4.6 (4.4–4.8) 1.0 (0.9–1.1)    
 Gastroenteritis 23.3 (22.7–23.9) 10.5 (10.2–10.7) 2.2 (2.0–2.4) Not measured Not measured Not measured
 Urinary tract infection 6.5 (6.1–6.8) 1.9 (1.7–2.0) 0.9 (0.8–1.0)    
 Vaccine-preventable infections 0.7 (0.6–0.8) 0.07 (0.06–0.10) (number too small to compute rate)    
Chronic ACS admissionsc N/A N/A N/A 26.0 (23.5–28.8) 193 (168–223) 178 (147–216)
  1. aCohort of 319,780 children born between 01/01/2000 and 31/03/2013 registered with 363 Clinical Practice Research Datalink practices linked to Hospital Episode Statistics in England, and followed up until 31/12/2013
  2. bIllness consultation: face-to-face consultation with a GP excluding preventive care
  3. cACS chronic admission rates (primary diagnosis at admission) in children aged 5–9 years diagnosed with ACS condition. We chose to analyse the age group alone because asthma cannot reliably be diagnosed in children aged less than 5 years
  4. ACS ambulatory care sensitive, LRTI lower respiratory tract infection, URTI upper respiratory tract infection