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Table 1 Demographic and social characteristics of the Hopkins Lupus Cohort by history of cancer

From: Association of systemic lupus erythematosus autoantibody diversity with breast cancer protection

Characteristic

Overall (N = 2431)

Cancer (N = 119)

No cancer (N = 2312)

p value*

Age of SLE onset, mean (SD)

28.5 (12.5)

32.9 (12.3)

28.3 (12.5)

< 0.001

Age at cohort entry, mean (SD)

36.8 (12.6)

41.2 (13.6)

36.6 (12.5)

< 0.001

First visit to last visit (years, mean (SD))

7.2 (7.3)

13.2 (7.9)

6.9 (7.1)

< 0.001

Female, no. (%)

2243 (92.3)

106 (89.1)

2137 (92.4)

0.19

Race, no. (%)

 White

1271 (52.3)

53 (44.5)

1218 (52.7)

0.08

 Black/African American

966 (39.7)

65 (54.6)

901 (39.0)

< 0.001

 Other**

194 (8.0)

1 (0.8)

193 (8.3)

0.003

Smoking status (ever smoker), no. (%)

877 (36.1)

54 (45.4)

823 (35.6)

0.030

Alcohol (past)

167 (6.9)

13 (10.9)

154 (6.7)

0.08

Cancer-SLE interval, years (mean (SD))

8.24 (6.70)

8.24 (6.70)

  

Deceased, no. (%)

194 (8.0)

25 (21.0)

169 (7.3)

< 0.001

  1. *p value for comparison between cancer and no cancer groups
  2. **Asian (N = 100, 4.1%), not Asian, White, Black/African-American or unspecified (N = 94, 3.9%)