Table 1 Baseline characteristics of the study population (n = 1,500,686) from 2003 to 2019
From: Incidence of acute otitis media from 2003 to 2019 in children ≤ 17 years in England
N | %a | |
|---|---|---|
Population by year | ||
2003 | 527,885 | – |
2004 | 579,904 | – |
2005 | 627,223 | – |
2006 | 668,922 | – |
2007 | 707,332 | – |
2008 | 745,655 | – |
2009 | 766,870 | – |
2010 | 790,398 | – |
2011 | 790,747 | – |
2012 | 784,472 | – |
2013 | 772,412 | – |
2014 | 699,879 | – |
2015 | 585,480 | – |
2016 | 430,976 | – |
2017 | 341,078 | – |
2018 | 282,628 | – |
2019 | 243,745 | – |
Age (years) | ||
Minimum, maximum | 0.0, 17.0 | – |
Mean, standard deviation | 5.7, 5.7 | – |
Median (lower quartile, upper quartile) | 4.0 (0.0–11.0) | – |
Age group | ||
< 2 years | 555,367 | 37.0 |
2–4 years | 215,630 | 14.4 |
5–17 years | 729,689 | 48.6 |
Sex | ||
Male | 775,231 | 51.7 |
Female | 725,455 | 48.3 |
Geographic region | ||
North East | 29,145 | 1.9 |
North West | 224,670 | 15.0 |
Yorkshire & The Humber | 52,502 | 3.5 |
East Midlands | 45,708 | 3.0 |
West Midlands | 173,151 | 11.5 |
East of England | 154,621 | 10.3 |
South West | 175,419 | 11.7 |
South Central | 191,935 | 12.8 |
London | 231,471 | 15.4 |
South East Coast | 222,064 | 14.8 |
Urbanicity | ||
Urban | 1,314,679 | 87.6 |
Rural | 186,007 | 12.4 |
Social deprivation (IMD Score) | ||
Quintile 1 (least deprived) | 322,501 | 21.5 |
Quintile 2 | 293,616 | 19.6 |
Quintile 3 | 297,302 | 19.8 |
Quintile 4 | 289,738 | 19.3 |
Quintile 5 (most deprived) | 295,851 | 19.7 |
Missing | 1678 | 0.1 |
Ethnicity | ||
White | 270,010 | 18.0 |
South Asian | 43,354 | 2.9 |
Black | 27,871 | 1.9 |
Other | 14,403 | 1.0 |
Mixed | 18,183 | 1.2 |
Not stated / Missing / Inconsistent | 1,126,865 | 75.1 |
Risk medical condition | ||
No history of any risk medical condition | 1,398,469 | 93.2 |
History of any risk medical conditionb | 102,217 | 6.8 |
Asplenia or dysfunction of the spleen | 810 | 0.1 |
Chronic respiratory disease | 92,424 | 6.2 |
Chronic heart disease | 3806 | 0.3 |
Chronic kidney disease | 585 | 0.0 |
Chronic liver disease | 162 | 0.0 |
Diabetes | 1946 | 0.1 |
Immunocompromising diseases | 10,579 | 0.7 |
Cerebrospinal fluid leak | 38 | 0.0 |
Cochlear implant | 134 | 0.0 |