Table 1

Baseline characteristics of the population during the initial COVID-19 lockdown (13 March 2020–3 May 2020) and the corresponding calendar period in the year before (13 March 2019–3 May 2019) by educational level

YearVariableLevelEducational level
LowMediumHigh
2019 Total N652 9651 331 524772 198
 Major cardiovascular events N (%)993 (0.2)1225 (0.1)482 (0.1)
 Age Median (IQR)64 (53–74)57 (49–68)55 (47–66)
 Men N (%)292 036 (44.7)701 757 (52.7)320 514 (41.5)
 Living alone N (%)280 905 (43.0)404 188 (30.4)215 418 (27.9)
 Income (EUR) Median (IQR)26 700(22 100–35,300)35 000(27 000–44 800)43 200(33 700–56 100)
 Ethnicity Danish585 818 (89.7)1 215 450 (91.3)694 054 (89.9)
 Immigrants64 725 (9.9)112 142 (8.4)75 001 (9.7)
 Descendants2422 (0.4)3932 (0.3)3143 (0.4)
 Diabetes N (%)71 743 (11.0)91 647 (6.9)31 242 (4.0)
 Chronic obstructive lung disease N (%)31 290 (4.8)29 517 (2.2)8843 (1.1)
 Hypertension N (%)143 386 (22.0)203 039 (15.2)79 232 (10.3)
 Atrial fibrillation N (%)32 164 (4.9)44 410 (3.3)21 551 (2.8)
 Peripheral artery disease N (%)22 991 (3.5)29 349 (2.2)10 191 (1.3)
 Ischaemic heart disease N (%)35 225 (5.4)50 335 (3.8)21 443 (2.8)
 Chronic kidney disease N (%)8559 (1.3)10 345 (0.8)3881 (0.5)
2020 Total N645 3551 345 043792 208
 Major cardiovascular events N (%)767 (0.1)1098 (0.1)425 (0.1)
 Age Median (IQR)64(53, 75)57(49, 68)55(47, 66)
 Men N (%)290 783 (45.1)708 522 (52.7)327 469 (41.3)
 Living alone N (%)280 449 (43.5)412 421 (30.7)221 876 (28.0)
 Income (EUR) Median (IQR)26 800 (22 200–35 400)35 000 (27 100–44 800)43 100 (33 700–55 800)
 Ethnicity Danish576 097 (89.3)1 227 319 (91.2)711 590 (89.8)
 Immigrants66 534 (10.3)113 304 (8.4)77 121 (9.7)
 Descendants2724 (0.4)4420 (0.3)3497 (0.4)
 Diabetes N (%)74 689 (11.6)98 372 (7.3)34 218 (4.3)
 Chronic obstructive lung disease N (%)31 792 (4.9)30 790 (2.3)9257 (1.2)
 Hypertension N (%)139 386 (21.6)204 784 (15.2)80 253 (10.1)
 Atrial fibrillation N (%)34 096 (5.3)48 653 (3.6)23 705 (3.0)
 Peripheral artery disease N (%)23 851 (3.7)31 628 (2.4)11 180 (1.4)
 Ischaemic heart disease N (%)36 081 (5.6)52 666 (3.9)22 526 (2.8)
 Chronic kidney disease N (%)8423 (1.3)10 451 (0.8)3946 (0.5)