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Table 1 Baseline demographic and clinical characteristics among patients diagnosed with melanoma or chronic lymphocytic leukemia (CLL)

From: Melanoma and CLL co-occurrence and survival: role of KC history

Characteristics

Melanoman (%)

CLLn (%)

All patients

Patients with KC history

All patients

Patients with KC history

Total sample size

5511

1579 (28.7)

571

113 (19.8)

Age at diagnosis

 mean (SD)

62.0 (15.1)

68.4 (11.6)

63.3 (11.2)

69.6 (9.0)

Age at diagnosis (categorized)

 18–29

168 (3.0)

6 (0.4)

2 (0.4)

0 (0)

 30–39

363 (6.6)

23 (1.5)

15 (2.6)

0 (0)

 40–49

578 (10.5)

70 (4.4)

41 (7.2)

2 (1.8)

 50–59

1015 (18.4)

228 (14.4)

149 (26.1)

15 (13.3)

 60–69

1481 (26.9)

467 (29.6)

177 (31.0)

31 (27.4)

 70–79

1298 (23.6)

527 (33.4)

154 (27.0)

53 (46.9)

 80 and above

608 (11.0)

258 (16.3)

33 (5.8)

12 (10.6)

Calendar year at diagnosisa

 2009–2011/2009–2012

792 (14.4)

149 (9.4)

129 (22.6)

12 (10.6)

 2012–2015/2013–2015

2184 (39.6)

654 (41.4)

144 (25.2)

33 (29.2)

 2016–2020

2535 (46.0)

776 (49.1)

298 (52.2)

68 (60.2)

Sex

 Female

2187 (39.7)

529 (33.5)

209 (36.6)

33 (29.2)

 Male

3324 (60.3)

1050 (66.5)

362 (63.4)

80 (70.8)

Race

 American Indian

3 (0.1)

1 (0.1)

0 (0)

0 (0)

 Asian

8 (0.1)

1 (0.1)

5 (0.9)

0 (0)

 Black

26 (0.5)

1 (0.1)

21 (3.7)

0 (0)

 White

5451 (98.9)

1571 (99.5)

532 (93.2)

113 (100.0)

 Multiple races

9 (0.2)

3 (0.2)

5 (0.9)

0 (0)

 Other

8 (0.1)

0 (0)

6 (1.1)

0 (0)

 Unknown

6 (0.1)

2 (0.1)

2 (0.4)

0 (0)

Ethnicity

 Non-Spanish or Hispanic origin

5402 (98.0)

1565 (99.1)

540 (94.6)

111 (98.2)

 Spanish or Hispanic origin

105 (1.9)

14 (0.9)

31 (5.4)

2 (1.8)

 Unknown

4 (0.1)

0 (0)

  

Histologyb

 Desmoplastic Melanoma

312 (5.7)

130 (8.2)

  

 Lentigo Melanoma

341 (6.2)

139 (8.8)

  

 Melanoma Nodular

794 (14.4)

186 (11.8)

  

 Superficial Spreading Melanoma

2479 (45.0)

705 (44.6)

  

 Other

1585 (28.8)

419 (26.5)

  

SEER stage at presentationc

 In situ

3 (0.1)

0 (0)

  

 Localized

3911 (71.0)

1201 (76.1)

  

 Regional

1131 (20.5)

286 (18.1)

  

 Distant metastasis

408 (7.4)

83 (5.3)

  

 Unknown/NA

58 (1.1)

9 (0.6)

  

AJCC stage at diagnosisc

 0

15 (0.3)

7 (0.4)

  

 1

2954 (53.6)

900 (57.0)

  

 2

1149 (20.8)

362 (22.9)

  

 3

973 (17.7)

223 (14.1)

  

 4

333 (6.0)

65 (4.1)

  

 Unknown/NA

87 (1.6)

22 (1.4)

  
  1. aCut-offs for calendar year at diagnosis were determined based on changes in treatment of melanoma and CLL
  2. bHistology data are not presented for CLL as they were all mature non-Hodgkin lymphoma B-cell
  3. cAmerican Joint Committee on Cancer (AJCC) and Surveillance, Epidemiology and End Results (SEER) stage data are not presented for CLL as they do not follow the same staging systems as solid tumors