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Table 1 Baseline characteristics according to length of U.S. residence at initial visit for LTBI therapy

From: Timing of therapy for latent tuberculosis infection among immigrants presenting to a U.S. public health clinic: a retrospective study

Length of U.S. Residence

 

Total (n, %)

Median Time in Months (IQR)

< 1 year (n, %)

1–5 years (n, %)

> 5 years (n, %)

p value

Total

1465

5 (2–30)

899 (61.4)

336 (22.9)

230 (15.7)

 

Gender

      

   Male

673 (46.0)

4 (2–24)

448 (66.6)

140 (20.8)

85 (12.6)

< 0.001

   Female

789 (54.0)

7 (0.2–77)

449 (59.9)

195 (24.7)

145 (18.4)

 

Age

      

   Median (IQR)

23 (15–32)

 

20 (14–30)

24 (17–32)

30 (24–36)

< 0.001

   < 35 yrs

1180 (80.6)

5 (2–28)

741 (62.8)

277 (23.5)

162 (13.7)

 

   ≥ 35 yrs

285 (19.5)

5 (2–54)

158 (55.4)

59 (20.7)

68 (23.9)

 

Region of Origin

      

   Africa

839 (57.4)

4 (2–14)

604 (72.0)

170 (20.3)

65 (7.8)

< 0.001

   Latin America & Caribbean

414 (28.3)

28 (6–79)

140 (33.8)

138 (33.3)

136 (32.9)

 

   Asia

153 (10.7)

4 (2–26)

102 (66.7)

24 (15.7)

27 (17.7)

 

   Canada & Europe

56 (3.8)

2 (1–4)

51 (91.1)

3 (5.4)

2 (3.6)

 

Race/Ethnicity

      

   White

59 (4.0)

2 (1–4)

53 (89.8)

4 (6.8)

2 (3.4)

< 0.001

   Hispanic

352 (24.1)

25 (6–72)

129 (36.7)

119 (33.8)

104 (29.6)

 

   Black

876 (59.9)

4 (2–18)

603 (68.8)

180 (20.6)

93 (10.6)

 

   Other

175 (12.0)

4 (2–170)

113 (64.6)

32 (18.2)

30 (17.1)

 

TST size (mm)

      

   Size (IQR)

15 (12–20)

 

15 (12–19)

15 (13–20)

16 (14–20)

0.67

HIV status

      

   Negative

498 (34.0)

2 (1–4)

440 (88.3)

30 (6.0)

28 (5.6)

< 0.001

   Positive

10 (0.7)

10 (4–16)

5 (50.0)

3 (30.0)

2 (20.0)

 

   Unknown

957 (65.3)

13 (4–49)

454 (47.4)

303 (31.7)

200 (20.9)

 

Referral

      

   Immigration

666 (46)

2 (1–4)

638 (95.8)

24 (3.6)

4 (0.6)

< 0.001

   Primary Medical Doctor

121 (8.4)

35 (12–90)

28 (23.1)

48 (39.7)

45 (37.2)

 

   Other*

662 (45.7)

24 (7–64)

226 (34.1)

259 (39.1)

177 (26.7)

 
  1. * Other = self-referrals, walk-in patients