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Table 1 Characteristics of the study population (incident CKD) by CKD registration status

From: Timeliness in chronic kidney disease and albuminuria identification: a retrospective cohort study

Variable

Category

CKD registered within 1 year (n = 1829)

Not CKD registered within 1 year (n = 11,159)

Total (n = 12,988)

 

n

Column %

n

Column %

n

Column %

p value

Sex

Male

836

45.7

4627

41.5

5463

42.1

0.001

Female

993

54.3

6532

58.5

7525

57.9

Age at study entry

<50

34

1.85

394

3.5

428

3.3

0.001

50-69

470

25.7

2921

26.1

3391

26.1

70-79

699

38.2

4274

38.3

4973

38.3

80+

626

34.2

3570

32.0

4196

32.3

IMD quintile

1 (most deprived)

156

8.5

1034

9.3

1190

9.2

0.33

2

266

14.5

1536

13.8

1802

13.9

3

412

22.5

2324

20.8

2736

21.1

4

424

23.1

2674

24.0

3098

23.9

5 (least deprived)

570

31.2

3582

32.1

4152

32.0

CVD at study entry

Yes

547

29.9

2927

26.2

3474

26.7

0.001

No

1282

70.1

8232

73.8

9514

73.3

Hypertension at study entry

Yes

1146

62.6

6049

54.2

7195

55.4

<0.001

No

683

37.3

5110

45.8

5793

44.6

Diabetes at study entry

Yes

344

18.8

1707

15.3

2051

15.8

<0.001

No

1485

81.2

9452

84.7

10,937

84.2

eGFR at study entry (ml/min/1.73 m2)

≥45

1542

84.3

9908

88.8

11,450

88.2

<0.001

30-44

235

12.8

976

8.7

1211

9.3

15-29

40

2.2

182

1.6

222

1.7

<15

12

0.7

93

0.8

105

0.8

uACR test within 1 year

Yes

676

37.0

1553

13.9

2229

17.2

<0.001

No

1153

63.0

9606

86.1

10,759

82.8

  1. Abbreviations in Table 2: CKD chronic kidney disease, IMD Index of multiple deprivation, BP blood pressure, eGFR estimated Glomerular Filtration Rate, CVD cardiovascular disease.