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Table 1 Characteristics of the study population

From: Healthcare use and clinical investigations before a diagnosis of ovarian cancer: a register-based study in Denmark

 

Ovarian cancer or borderline ovarian tumour

No cancer

Total

Median

(IQR)

Median

(IQR)

Median

(IQR)

Age at index date

66

(57; 74)

66

(57; 74)

66

(57; 74)

 

N

(%)

N

(%)

N

(%)

Total

4,255

(100.0)

42,550

(100.0)

46,805

(100.0)

Sex

      

 Female

4,255

(100.0)

42,550

(100.0)

46,805

(100.0)

Age groupsa, years

      

 40–49

500

(11.8)

4,995

(11.7)

5,495

(11.7)

 50–64

1,384

(32.5)

13,835

(32.5)

15,219

(32.5)

 65–74

1,344

(31.6)

13,445

(31.6)

14,789

(31.6)

 75–84

785

(18.4)

7,891

(18.5)

8,676

(18.5)

 85+

242

(5.7)

2,384

(5.6)

2,626

(5.6)

Comorbidityb

      

 None

3,346

(78.6)

32,539

(76.5)

35,885

(76.7)

 Low

782

(18.4)

8,495

(20.0)

9,277

(19.8)

 High

127

(3.0)

1,516

(3.6)

1,643

(3.5)

Educational levelc

      

 Short

1,551

(36.5)

16,052

(37.7)

17,603

(37.6)

 Medium

1,687

(39.6)

16,895

(39.7)

18,582

(39.7)

 Long

1,017

(23.9)

9,603

(22.6)

10,620

(22.7)

Disposable incomed

      

 Low

1,362

(32.0)

14,084

(33.1)

15,446

(33.0)

 Middle

1,457

(34.2)

13,988

(32.9)

15,445

(33.0)

 High

1,436

(33.7)

14,478

(34.0)

15,914

(34.0)

Marital statusd

      

 Cohabitant

2,301

(54.1)

23,877

(56.1)

26,178

(55.9)

 Living alone

1,954

(45.9)

18,673

(43.9)

20,627

(44.1)

Country of origin

      

 Danish

4,029

(94.7)

39,827

(93.6)

43,856

(93.7)

 Immigrant

226

(5.3)

2,723

(6.4)

2,949

(6.3)

Tumour stagee

      

 I

1,416

(33.3)

n/a

n/a

1,416

(3.0)

 II

245

(5.8)

n/a

n/a

245

(0.5)

 III

1,245

(29.3)

n/a

n/a

1,245

(2.7)

 IV

972

(22.8)

n/a

n/a

972

(2.1)

 Unknown

377

(8.9)

n/a

n/a

377

(0.8)

 Reference

n/a

n/a

42,550

(100.0)

42,550

(90.9)

  1. aAge at the time of diagnosis, i.e. index date
  2. bCharlson Comorbidity Index score calculated on the first day of analysis, divided into 0 (none) 1–2 (low) and ≥ 3 (high)
  3. cEducational level defined as the highest completed level of education at study entry (12 months prior to index date)
  4. dDisposable income and marital status defined at study entry (12 months prior to index date)
  5. eTumour stage according to FIGO classification. Borderline tumours included
  6. Abbreviations: n/a = Not applicable. IQR = Interquartile range
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