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Table 3 Risk factors associated with multizonal anogenital neoplasia diagnosis at first assessment and/or follow-up

From: Multizonal anogenital neoplasia in women: a cohort analysis

 

MZN (n=56)

NON-MZN (n= 197)

Testa

p-value

Age at first visit (years), median (IQR)

46 (39-55)

47 (35-57)

Z= -0.031

0.98

Age at first HSIL/cancer (years), median (IQR)

41 (34-49)

43 (32-55)

Z=1.091

0.278

Ever smoked, n (%)

31 (61)

102 (55)

Chi2(1)=0.472

0.50

Current smoker, n (%)

26 (51)

63 (33)

Chi2(1)=5.42

0.02

Current smoking pack-years, median (IQR)

15 (11-21)

22 (9-35)

Z=0.531

0.60

HIV-positive, n (%)

11 (20)

22 (11)

Chi2(1)=2.82

0.10

Pharmacologically immunocompromised, n (%)

15 (27)

20 (10)

Chi2(1)=10.12

0.001

Anal sexual intercourse, n (%)

5 (21)

32 (31)

Chi2(1)=0.92

0.33

Time since the 1st anogenital HSIL/cancer diagnosis (years) to first visit, median (IQR)

3 (1-9)

4 (1-12)

Z=1.31

0.19

Previous history of anogenital cancer, n (%)

14 (25)

37 (19)

Chi2(1) = 1.12

0.31

Previous history of HSIL/cancer any site, n (%)

55 (98)

136 (69)

Chi2(1)=20.12

<0.001

Previous history of HSIL/cancer by first site

 Cervical, n (%)

28 (51)

64 (47)

Chi2(4)=7.72

0.10

 Vulval, n (%)

19 (35)

30 (22)

 Vaginal, n (%)

0 (0)

5 (4)

 Anal, n (%)

7 (13)

27 (20)

 Perianal, n (%)

1 (2)

10 (7)

  1. HSIL High-grade squamous intraepithelial lesions, IQR Interquartile range, MZN Multizonal anogenital neoplasia cases, NON-MZN Cases with no multizonal anogenital neoplasia ever diagnosed
  2. a We used 1) Mann-Whitney test for continuous outcomes; or 2) Chi-square test for binary outcome.