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Table 3 Logistic regression estimates of prevalent tuberculosis and population attributable fractions of prevalent tuberculosis to hyperglycaemia for sequential random blood glucose concentration cut-offs

From: The association of hyperglycaemia with prevalent tuberculosis: a population-based cross-sectional study

Random blood glucose concentration (mmol/L) Total number (%) Number (%) with prevalent TB Unadjusted OR (95% CI) P-value# Adjusted OR (95% CI)a P-value# PAF (95% CI) of prevalent TB to hyperglycaemia (%)
ZAMBIA
<7.0 23,369 (84.1) 109 (0.5) 1 0.012 1 0.007 7.16 (2.51–11.59)
≥7.0 4,431 (15.9) 35 (0.8) 1.68 (1.14–2.46) 1.82 (1.20–2.75)
<7.8 25,444 (91.5) 123 (0.5) 1 0.017 1 0.018 4.12 (0.90–7.24)
≥7.8 2,356 (8.5) 21 (0.9) 1.84 (1.15–2.93) 1.94 (1.16–3.25)
<9.0 26,816 (96.5) 133 (0.5) 1 0.022 1 0.007 2.28 (0.12–4.38)
≥9.0 984 (3.5) 11 (1.1) 2.25 (1.21–4.19) 2.86 (1.46–5.60)
<11.1 27,395 (98.5) 142 (0.5) 1 0.921 1 0.818 0.00 (0.00–3.21)
≥11.1 405 (1.5) 2 (0.5) 0.93 (0.23–3.79) 0.80 (0.11–5.85)
WESTERN CAPE
<7.0 9,532 (83.9) 235 (2.5) 1 0.525 1 0.386 2.34 (0.00–7.08)
≥7.0 1,835 (16.1) 50 (2.7) 1.11 (0.81–1.51)   1.17 (0.82–1.66)   
<7.8 10,320 (90.8) 255 (2.5) 1 0.417 1 0.383 1.66 (0.00–4.96)
≥7.8 1,047 (9.2) 30 (2.9) 1.18 (0.80–1.73) 1.22 (0.79–1.89)
<9.0 10,801 (95.0) 270 (2.5) 1 0.787 1 0.308 1.35 (0.00–3.55)
≥9.0 566 (5.0) 15 (2.7) 1.08 (0.63–1.83) 1.37 (0.77–2.44)
<11.1 11,045 (97.2) 272 (2.5) 1 0.099 1 0.015 1.64 (0.28–2.99)
≥11.1 322 (2.8) 13 (4.0) 1.67 (0.94–2.96) 2.38 (1.26–4.50)
  1. TB tuberculosis, OR odds ratio, CI confidence interval, PAF population attributable fraction; All analyses accounted for the two-stage clustered sampling design through the use of a logistic regression model with random effects for enumeration area and inclusion of region or community as a fixed effect; Negative PAFs were given a value of zero; #Likelihood ratio tests; aAdjusted for age, sex, HIV status, body mass index, household socioeconomic position and education