Table 1.

Seasonal average study population (#) and percentage (%) by age group and high-risk conditions, Denmark (2010/11 to 2017/18) and England (2010/11–2018/19).

		Denmark					England
Age group:		18–34 yrs	35–49 yrs	50–64 yrs	65–74 yrs	>75 yrs	18–34 yrs	35–49 yrs	50–64 yrs	65–74 yrs	>75 yrs
Study population	#	1,184,338	1,162,715	1,091,518	607,953	422,744	2,124,434	1,932,551	1,641,127	810,820	703,539
No high-risk condition	#	1,116,222	1,048,161	888,877	418,772	240,462	1,770,594	1,451,475	1,031,906	395,988	259,218
	%	94.3	90.1	81.4	68.9	57.0	83.3	75.1	62.9	48.8	36.8
Any high-risk condition	#	68,116	114,554	202,642	189,182	182,282	353,840	481,076	609,221	414,832	444,320
	%	5.7	9.9	18.6	31.1	43.0	16.7	24.9	37.1	51.2	63.2
Asthma	#	9424	10,298	9990	5943	4181	149,687	152,166	137,866	73,471	61,578
	%	0.8	0.9	0.9	1.0	1.0	7.0	7.9	8.4	9.1	8.8
Respiratory disorders	#	1303	4329	15,975	20,205	24,617	1716	7642	37,639	48,471	52,624
	%	0.1	0.4	1.5	3.3	5.8	0.1	0.4	2.3	6.0	7.5
Cardiovascular	#	3959	17,050	58,372	72,192	95,037	4812	18,310	74,855	97,262	168,364
	%	0.3	1.5	5.3	11.9	22.4	0.2	0.9	4.6	12.0	23.9
Diabetes	#	10,027	26,678	69,683	67,618	51,795	19,534	56,832	137,204	116,557	121,541
	%	0.8	2.3	6.4	11.1	12.2	0.9	3.0	8.4	14.4	17.3
Endocrine disorders*	#	7455	14,029	16,489	10,800	10,628	18,516	38,451	52,165	33,277	35,860
	%	0.6	1.2	1.5	1.8	2.5	0.9	2.0	3.2	4.1	5.1
Blood disorders	#	476	488	716	953	1476	3584	2914	1591	696	787
	%	0.0	0.0	0.1	0.2	0.4	0.2	0.2	0.1	0.1	0.1
Immunocompromised	#	11,361	23,440	47,006	51,182	45,635	32,523	37,212	54,186	53,220	62,564
	%	1.0	2.0	4.3	8.4	10.7	1.5	1.9	3.3	6.6	8.9
Kidney disorders	#	840	1,918	4046	5792	9513	1735	6964	26,055	46,062	100,293
	%	0.1	0.2	0.4	0.9	2.2	0.1	0.4	1.6	5.7	14.2
Liver disorders	#	1849	4276	6517	3043	1177	3226	10,620	16,654	7704	3319
	%	0.2	0.4	0.6	0.5	0.3	0.2	0.6	1.0	0.9	0.5
Neurological disorders	#	1498	3730	5462	5748	13,106	1331	3924	7279	11,354	52,003
	%	0.1	0.3	0.5	0.9	3.1	0.1	0.2	0.4	1.4	7.4

*Excludes diabetes.