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Table 2 Baseline characteristics of study populations before and after IPTW

From: Depression or anxiety and long-term mortality among adult survivors of intensive care unit: a population-based cohort study

 

Before IPTW

After IPTW

 

Total

Control

Pre

Depression or Anxiety

Post

Depression or Anxiety

SMD

Control

Pre

Depression or Anxiety

Post

Depression or Anxiety

SMD

Number of patients

799,645

436,023

265,092

98,530

 

439,688

262,698

98,843

 

Age

64.4 ± 14.6

62.2 ± 14.8

68.4 ± 13.6

63.8 ± 14.3

0.288

64.7 ± 14.8

64.7 ± 14.6

64.7 ± 14.6

0.004

Age group

    

0.299

   

0.011

 18–29

15,575 (2.0)

10,993 (2.5)

2,982 (1.1)

1,600 (1.6)

 

8,511 (1.9)

5,352 (2.0)

1,876 (1.9)

 

 30–39

30,080 (3.8)

20,213 (4.6)

5,990 (2.3)

3,877 (3.9)

 

16,345 (3.7)

9,897 (3.8)

3,613 (3.7)

 

 40–49

77,743 (9.7)

50,538 (11.6)

16,621 (6.3)

10,584 (10.7)

 

42,102 (9.6)

24,972 (9.5)

9,318 (9.4)

 

 50–59

159,344 (19.9)

99,047 (22.7)

39,250 (14.8)

21,047 (21.4)

 

86,248 (19.6)

51,064 (19.4)

19,220 (19.4)

 

 60–69

192,054 (24.0)

108,962 (25.0)

59,223 (22.3)

23,869 (24.2)

 

104,220 (23.7)

62,565 (23.8)

23,609 (23.9)

 

 70–79

200,233 (25.0)

93,235 (21.4)

83,293 (31.4)

23,705 (24.1)

 

110,663 (25.2)

66,601 (25.4)

25,191 (25.5)

 

  ≥ 80

124,616 (15.6)

53,035 (12.2)

57,733 (21.8)

13,848 (14.1)

 

71,599 (16.3)

42,247 (16.1)

16,016 (16.2)

 

Sex

    

0.250

   

0.005

 Male

455,787 (57.0)

278,975 (64.0)

120,703 (45.5)

56,109 (56.9)

 

247,389 (56.3)

147,549 (56.2)

55,873 (56.5)

 

 Female

343,858 (43.0)

157,048 (36.0)

144,389 (54.5)

42,421 (43.1)

 

192,299 (43.7)

115,149 (43.8)

42,970 (43.5)

 

Economic status

    

0.188

   

0.007

 Medicaid

71,509 (8.9)

26,737 (6.1)

36,752 (13.9)

8,020 (8.1)

 

42,540 (9.7)

24,953 (9.5)

9,391 (9.5)

 

 Quartile 1 (Lowest)

148,323 (18.6)

83,515 (19.2)

45,496 (17.2)

19,312 (19.6)

 

81,302 (18.5)

48,810 (18.6)

18,220 (18.4)

 

 Quartile 2

139,003 (17.4)

81,174 (18.6)

39,956 (15.1)

17,873 (18.1)

 

75,842 (17.2)

45,270 (17.2)

16,970 (17.2)

 

 Quartile 3

177,248 (22.2)

101,855 (23.4)

53,360 (20.1)

22,033 (22.4)

 

96,532 (22.0)

57,474 (21.9)

21,736 (22.0)

 

 Quartile 4 (Highest)

263,562 (33.0)

142,742 (32.7)

89,528 (33.8)

31,292 (31.8)

 

143,472 (32.6)

86,191 (32.8)

32,526 (32.9)

 

Comorbidities

         

 CCI score

3.7 ± 2.4

3.3 ± 2.2

4.5 ± 2.5

3.7 ± 2.3

0.356

3.8 ± 2.4

3.8 ± 2.4

3.8 ± 2.4

0.011

 Hypertension

563,569 (70.5)

288,420 (66.2)

205,534 (77.5)

69,615 (70.7)

0.170

311,028 (70.7)

185,561 (70.6)

69,862 (70.7)

0.001

 Dyslipidemia

587,572 (73.5)

302,660 (69.4)

214,687 (81.0)

70,225 (71.3)

0.180

323,206 (73.5)

192,607 (73.3)

73,165 (74.0)

0.011

 Acute myocardial infarction

113,900 (14.2)

71,165 (16.3)

31,945 (12.1)

10,790 (11.0)

0.105

61,334 (14.0)

35,321 (13.5)

14,405 (14.6)

0.022

 Congestive heart failure

162,696 (20.4)

79,483 (18.2)

65,453 (24.7)

17,760 (18.0)

0.109

89,721 (20.4)

53,368 (20.3)

20,667 (20.9)

0.010

 Peripheral vascular disease

165,899 (20.8)

68,910 (15.8)

78,563 (29.6)

18,426 (18.7)

0.223

92,138 (21.0)

55,079 (21.0)

21,074 (21.3)

0.006

 Cerebral vascular disease

312,101 (39.0)

137,275 (31.5)

126,620 (47.8)

48,206 (48.9)

0.241

173,856 (39.5)

101,747 (38.7)

38,082 (38.5)

0.014

 Dementia

83,037 (10.4)

22,996 (5.3)

51,449 (19.4)

8,592 (8.7)

0.296

49,146 (11.2)

27,939 (10.6)

10,600 (10.7)

0.012

 Pulmonary disease

429,986 (53.8)

205,746 (47.2)

171,916 (64.9)

52,324 (53.1)

0.240

237,472 (54.0)

141,990 (54.1)

53,738 (54.4)

0.005

 Connective tissue disorder

45,460 (5.7)

17,582 (4.0)

22,746 (8.6)

5,132 (5.2)

0.126

25,418 (5.8)

15,159 (5.8)

5,796 (5.9)

0.003

 Peptic ulcer

346,925 (43.4)

161,816 (37.1)

145,327 (54.8)

39,782 (40.4)

0.240

191,545 (43.6)

114,418 (43.6)

43,558 (44.1)

0.007

 Liver disease

76,175 (9.5)

36,612 (8.4)

30,476 (11.5)

9,087 (9.2)

0.069

42,449 (9.7)

25,642 (9.8)

9,557 (9.7)

0.002

 Diabetes

382,306 (47.8)

188,958 (43.3)

147,275 (55.6)

46,073 (46.8)

0.164

211,313 (48.1)

126,145 (48.0)

47,719 (48.3)

0.003

 Diabetes complications

104,629 (13.1)

45,705 (10.5)

47,282 (17.8)

11,642 (11.8)

0.142

58,178 (13.2)

34,902 (13.3)

13,330 (13.5)

0.005

 Paraplegia

50,130 (6.3)

20,720 (4.8)

18,363 (6.9)

11,047 (11.2)

0.161

28,467 (6.5)

16,269 (6.2)

5,983 (6.1)

0.012

 Renal disease

74,199 (9.3)

35,301 (8.1)

30,734 (11.6)

8,164 (8.3)

0.078

41,255 (9.4)

24,857 (9.5)

9,537 (9.7)

0.006

 Tumor

148,270 (18.5)

83,605 (19.2)

47,693 (18.0)

16,972 (17.2)

0.034

80,952 (18.4)

48,752 (18.6)

18,668 (18.9)

0.008

 Lymphoma

3,521 (0.4)

1,756 (0.4)

1,278 (0.5)

487 (0.5)

0.009

1,973 (0.5)

1,200 (0.5)

442 (0.5)

0.001

 Leukemia

1,614 (0.2)

874 (0.2)

507 (0.2)

233 (0.2)

0.007

894 (0.2)

537 (0.2)

203 (0.2)

0.001

 Metastatic cancer

23,786 (3.0)

13,639 (3.1)

7,070 (2.7)

3,077 (3.1)

0.018

13,055 (3.0)

7,961 (3.0)

2,996 (3.0)

0.002

 Severe liver disease

12,107 (1.5)

5,838 (1.3)

4,864 (1.8)

1,405 (1.4)

0.026

6,757 (1.5)

4,108 (1.6)

1,528 (1.6)

0.001

 HIV

572 (0.1)

339 (0.1)

179 (0.1)

54 (0.1)

0.006

314 (0.1)

198 (0.1)

69 (0.1)

0.001

  1. IPTW inverse probability treatment weighting, SMD standardized mean difference, CCI charlson Comorbidity Index, HIV human immunodeficiency virus