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Table 1 Patients’ baseline characteristics according to number of patients per room type

From: Risk of nosocomial coronavirus disease 2019: comparison between single- and multiple-occupancy rooms

Variablesa

1A (n = 268)

1B (n = 1481)

2 (n = 6743)

3 (n = 606)

4 (n = 3001)

5 (n = 1935)

6 (n = 11,109)

Mean ASDc

Maximum ASDc

Hospitalizations per room typeb (total n = 25,143)

Age, years

68 [56–78.5]

62 [49–72]

61 [48–70]

52 [29–65]

63 [51–71]

61 [49–70]

63 [50–72]

0.31

0.95

Sex, male

148 (55.2)

790 (53.3)

3365 (49.9)

289 (47.7)

1075 (35.8)

643 (33.2)

6224 (56.0)

0.22

0.47

Diabetes mellitus

63 (23.5)

310 (20.9)

1033 (15.3)

63 (10.4)

517 (17.2)

225 (11.6)

1876 (16.9)

0.15

0.35

Chronic kidney disease

5 (1.9)

217 (14.7)

359 (5.3)

4 (0.7)

128 (4.3)

28 (1.4)

492 (4.4)

0.22

0.55

Cardiovascular disease

29 (10.8)

179 (12.1)

545 (8.1)

15 (2.5)

248 (8.3)

96 (5.0)

966 (8.7)

0.15

0.38

Heart failure

8 (3.0)

65 (4.4)

236 (3.5)

8 (1.3)

137 (4.6)

40 (2.1)

428 (3.9)

0.09

0.19

Cerebrovascular accident

29 (10.8)

156 (10.5)

408 (6.1)

21 (3.5)

272 (9.1)

128 (6.6)

890 (8.0)

0.12

0.29

Liver cirrhosis

19 (7.1)

69 (4.7)

440 (6.5)

18 (3.0)

223 (7.4)

48 (2.5)

684 (6.2)

0.11

0.23

COPD

10 (3.7)

34 (2.3)

137 (2.0)

11 (1.8)

79 (2.6)

44 (2.3)

298 (2.7)

0.04

0.12

Interstitial lung disease

19 (7.1)

46 (3.1)

140 (2.1)

11 (1.8)

108 (3.6)

82 (4.2)

306 (2.8)

0.10

0.26

Rheumatologic disease

15 (5.6)

57 (3.8)

163 (2.4)

10 (1.7)

118 (3.9)

37 (1.9)

460 (4.1)

0.09

0.21

Asthma

21 (7.8)

52 (3.5)

164 (2.4)

15 (2.5)

101 (3.4)

35 (1.8)

296 (2.7)

0.10

0.28

Hematologic malignancy

20 (7.5)

116 (7.8)

477 (7.1)

35 (5.8)

304 (10.1)

177 (9.1)

727 (6.5)

0.07

0.16

Solid malignancy

165 (61.6)

651 (44.0)

3559 (52.8)

242 (40.0)

1516 (50.5)

1434 (74.1)

4992 (44.9)

0.29

0.74

SOT

8 (3.0)

70 (4.7)

231 (3.4)

2 (0.3)

119 (4.0)

32 (1.7)

378 (3.4)

0.11

0.28

HSCT

0 (0.0)

5 (0.3)

12 (0.2)

0 (0.0)

18 (0.6)

5 (0.3)

39 (0.4)

0.05

0.11

Duration of hospitalization

8 [6–15]

12 [7–23]

9 [6–17]

16.5 [10–28]

9 [6–18]

7 [6–15]

9 [6–15]

0.17

0.41

  1. Data are presented as n (%) or median [interquartile range] unless otherwise indicated
  2. ASD, absolute standardized difference; COPD, chronic obstructive pulmonary disease; SOT, solid organ transplantationl; HSCT, hematopoietic stem cell transplantation
  3. a1A: single-bed room in an all single-bed room ward; 1B: single-bed room in a mixed single- and multiple-bed room ward
  4. bIf a patient was hospitalized in multiple hospital rooms, hospitalization period in each room was counted separately
  5. cMean ASD and maximum ASD are the mean and maximum of the 21 pairwise ASDs among the seven groups, respectively