Table 2

Sample Characteristics - Age group 20-29, 30-39, 40-49, 50-59 and 60-68 years

Variables

Age group


20-29 years

30-39 years

40-49 years

50-59 years

60-68 years


controls

cases

controls

Cases

controls

cases

controls

cases

controls

cases


Number of observations

809,974

30,665

843,807

28,199

776,786

22,259

461,190

11,978

114,708

2,594


Male

414,779 (51.21%)

18,839 (61.43%)

430,615 (51.03%)

17,207 (61.02%)

394,148 (50.74%)

13,088 (58.80%)

231,696 (50.24%)

6,902 (57.62%)

56,652 (49.39%)

1,489 (57.41%)


Age (years)

24.56 (2.87)

24.49 (2.86)

34.53 (2.87)

34.42 (2.87)

44.29 (2.84)

44.17 (2.84)

53.84 (2.79)

53.79 (2.78)

62.52 (2.17)

62.35 (2.09)


Exposure time (days)

363.56 (19.43)

363.65 (18.96)

364.24 (15.50)

364.29 (15.35)

364.40 (14.31)

364.25 (15.72)

363.94 (17.97)

363.78 (18.44)

363.01 (23.85)

362.03 (29.29)


Hospitalized at least once

94,494 (11.67%)

4,299 (14.02%)

93,509 (11.08%)

3,331 (11.81%)

65,961 (8.49%)

2,194 (9.86%)

45,083 (9.78%)

1,327 (11.08%)

14,784 (12.89%)

346 (13.34%)


Days hospitalized (if hosp at least once)

5.52 (9.99)

5.98 (9.61)

5.83 (10.94)

6.42 (12.38)

7.79 (14.44)

8.42 (15.89)

9.41 (17.18)

9.66 (18.07)

10.86 (18.57)

10.68 (17.73)


Income (DKK)

123,945 (77,726)

121,800 (75,051)

192,523 (121,500)

189,219 (116,759)

217,822 (178,648)

212,897 (173,192)

239,396 (224,678)

228,357 (160,773)

212,304 (196,313)

206,992 (146,882)


Education


Primary and lower secondary

297,153 (36.69%)

13,766 (44.89%)

245,626 (29.11%)

9,867 (34.99%)

267,417 (34.43%)

8,666 (38.93%)

175,494 (38.05%)

5,148 (42.98%)

52,074 (45.40%)

1,226 (47.26%)


Upper and post-secondary

435,834 (53.81%)

14,422 (47.03%)

383,077 (45.40%)

12,027 (42.65%)

324,811 (41.81%)

8,762 (39.36%)

187,931 (40.75%)

4,423 (36.93%)

42,703 (37.23%)

931 (35.89%)


Tertiary

76,987 (9.50%)

2,477 (8.08%)

215,104 (25.49%)

6,305 (22.36%)

184,558 (23.76%)

4,831 (21.70%)

97,765 (21.20%)

2,407 (20.10%)

19,931 (17.38%)

437 (16.85%)


Occupational status


Self-employed

13,765 (1.70%)

463 (1.51%)

51,060 (6.05%)

1,422 (5.04%)

73,477 (9.46%)

1,834 (8.24%)

45,158 (9.79%)

1,052 (8.78%)

8,433 (7.35%)

140 (5.40%)


Employed

611,023 (75.44%)

22,030 (71.84%)

668,622 (79.24%)

21,350 (75.71%)

593,681 (76.43%)

16,070 (72.20%)

316,158 (68.55%)

7,673 (64.06%)

37,438 (32.64%)

888 (34.23%)


Unemployed/others

185,186 (22.86%)

8,172 (26.65%)

124,125 (14.71%)

5,427 (19.25%)

109,628 (14.11%)

4,355 (19.57%)

99,874 (21.66%)

3,253 (27.16%)

68,837 (60.01%)

1,566 (60.37%)


Marital status


Married

107,168 (13.23%)

2,949 (9.62%)

457,235 (54.19%)

12,211 (43.30%)

526,766 (67.81%)

12,636 (56.77%)

324,544 (70.37%)

7,214 (60.23%)

79,749 (69.52%)

1,544 (59.52%)


Cohabiting

233,266 (28.80%)

7,158 (23.34%)

169,010 (20.03%)

5,090 (18.05%)

72,799 (9.37%)

2,131 (9.57%)

30,029 (6.51%)

822 (6.86%)

5,773 (5.03%)

133 (5.13%)


Single

469,540 (57.97%)

20,558 (67.04%)

217,562 (25.78%)

10,898 (38.65%)

177,221 (22.81%)

7,492 (33.66%)

106,617 (23.12%)

3,942 (32.91%)

29,186 (25.44%)

917 (35.35%)


Urbanization


> = 1000 Inh/km2

181,837 (22.45%)

6,499 (21.19%)

161,546 (19.14%)

5,553 (19.69%)

127,076 (16.36%)

3,967 (17.82%)

72,867 (15.80%)

2,161 (18.04%)

17,711 (15.44%)

444 (17.12%)


500-999 Inh/km2

144,758 (17.87%)

5,371 (17.52%)

135,991 (16.12%)

4,387 (15.56%)

124,759 (16.06%)

3,478 (15.63%)

74,472 (16.15%)

1,911 (15.95%)

18,459 (16.09%)

438 (16.89%)


200-499 Inh/km2

154,331 (19.05%)

5,740 (18.72%)

158,589 (18.79%)

5,175 (18.35%)

151,396 (19.49%)

4,121 (18.51%)

93,885 (20.36%)

2,271 (18.96%)

23,636 (20.61%)

494 (19.04%)


100-199 Inh/km2

108,477 (13.39%)

4,273 (13.93%)

121,933 (14.45%)

4,092 (14.51%)

117,405 (15.11%)

3,270 (14.69%)

69,050 (14.97%)

1,729 (14.43%)

16,727 (14.58%)

348 (13.42%)


50-99 Inh/km2

139,364 (17.21%)

5,539 (18.06%)

169,834 (20.13%)

5,779 (20.49%)

164,398 (21.16%)

5,003 (22.48%)

96,798 (20.99%)

2,628 (21.94%)

24,287 (21.17%)

607 (23.40%)


< 50 Inh/km2

81,207 (10.03%)

3,243 (10.58%)

95,914 (11.37%)

3,213 (11.39%)

91,752 (11.81%)

2,420 (10.87%)

54,118 (11.73%)

1,278 (10.67%)

13,888 (12.11%)

263 (10.14%)


Exposure time

363.56

363.65

364.24

364.29

364.40

364.25

363.94

363.78

363.01

362.03


(days living in Denmark per year)

(19.43)

(18.96)

(15.50)

(15.35)

(14.31)

(15.72)

(17.97)

(18.44)

(23.85)

(29.29)


Wehby et al. BMC Health Services Research 2012 12:58   doi:10.1186/1472-6963-12-58

Open Data