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Table 4 Mortality rates stratified according to time-updated anaemia severity and CD4 cell count

From: The predictive value of current haemoglobin levels for incident tuberculosis and/or mortality during long-term antiretroviral therapy in South Africa: a cohort study

  Overall Mortality Mortality in first 4 months of ART Mortality after 4 months of ART Mortality <6 months after incident TB diagnosis
  Total number PY at risk Rate per 100 PYs (95%CI) Total number PY at risk Rate per 100 PYs (95%CI) Total number PY at risk Rate per 100 PYs (95%CI) Total number PY at risk Rate per 100 PYs (95%CI)
Anaemia severity             
None 48 4,415.7 1.1 (0.8-1.5) 8 140.6 5.7 (2.9-12.8) 40 4,275.1 0.9 (0.7-1.3) 3 71.5 4.2 (1.3-20.6)
Mild 45 1,270.3 3.5 (2.7-4.8) 12 126.5 9.5 (5.5-17.8) 33 1,143.8 2.9 (2.1-4.2) 5 40.8 12.3 (5.1-36.8)
Moderate 86 727.0 11.8 (9.5-14.8) 39 172.0 22.7 (16.7-31.5) 47 555.0 8.5 (6.3-11.5) 22 45.4 48.5 (32.0-76.0)
Severe 13 46.1 28.2 (16.5-51.5) 5 18.1 27.6 (11.7-80.5) 8 28.0 28.5 (14.4-63.6) 4 6.9 58.4 (22.9-190.9)
CD4 cell count (cells/uL)             
≥500 13 1,809.0 0.7 (0.4-1.3) 0 2.7 0 13 1,806.3 0.7 (0.4-1.3) 4 22.4 0
200-499 48 3,264.8 1.5 (1.1-2.0) 4 69.4 5.8 (2.2-20.6) 44 3,195.4 1.4 (1.0-1.9) 11 74.7 9.4 (4.5-22.4)
100-199 44 957.5 4.6 (3.4-6.3) 14 177.7 7.9 (4.8-14.0) 30 779.7 3.8 (2.7-5.6) 3 36.2 22.1 (10.7-50.9)
<100 87 427.9 20.3 (16.5-23.4) 46 207.4 22.2 (16.7-30.0) 41 220.5 18.6 (13.6-25.8) 5 31.2 60.9 (39.6-97.2)
Total 192 6,459.2 3.0 (2.6-3.5) 64 457.2 14.0 (11.0-18.1) 128 6,001.9 2.1 (1.8-2.6) 34 164.5 20.7 (14.8-29.7)