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Table 3 Cohort characteristics

From: Retention in care, resource utilization, and costs for adults receiving antiretroviral therapy in Zambia: a retrospective cohort study

Characteristic

Site 1

Site 2

Site 3

Site 4

Site 5

Site 6

All sites

Total sample size

149

149

147

149

102

150

846

Follow up time, months

12

36

12

12

12

36

---

Median age at ART initiation, years [IQR]

35 [30–40]

35 [30–43]

34 [29–40]

33 [29–42]

35 [31–41]

37 [31–46]

35 [30–42]

Sex, % female

63

52

68

66

45

58

60

Median CD4 at ART initiation, cells/μL [IQR]a

149 [97–211]

127 [67–206]

136 [84–199]

150 [77–237]

140 [74–273]

160 [106–209]

145 [86–212]

Regimen at ART initiation, % of patients

       

TDF-containing regimen

36

86

80

15

54

80

59

AZT-containing regimen

30

5

13

4

30

7

14

ABC-containing regimen

0

5

0

76

0

0

14

d4T-containing regimen

34

5

7

5

16

13

13

  1. ART: antiretroviral therapy; ABC: abacavir; AZT: zidovudine; d4T: stavudine; IQR: interquartile range; TDF: tenofovir.
  2. a793 of 846 patients in the sample had a CD4 cell count at initiation.