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Table 1 Summary characteristics for study variables, by surveillance type, for all local authority (n = 326), England, 2014–16

From: Estimating the burden of care home gastroenteritis outbreaks in England, 2014–2016

  Routine (n = 305) Enhanced (n = 21)  
Variable Median 25p 75p Median 25p 75p p value
Number of outbreaks 19 12 31 69 42 93 < 0.0001
Number of care homes 36 25 54 58 35 80 0.0037
Number of lab confirmed norovirus cases 31 13 64 28 15 48 0.6246
Total population 128,467 96,956 197,657 203,307 147,915 316,002 0.0030
Proportion under 5 0.06 0.05 0.07 0.06 0.06 0.06 0.5390
Proportion over 65 0.18 0.15 0.22 0.18 0.16 0.20 0.8626
Number of primary schools 54 40 73 75 54 106 0.0014