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Table 1 Number of people screened for tuberculosis in the Zambian national tuberculosis prevalence survey 2013–14, proportion of people diagnosed with tuberculosis and association of age group (15–54 years and 55 years and above) with demographic characteristics

From: Tuberculosis among older adults in Zambia: burden and characteristics among a neglected group

Demographic characteristic 15–54 55+ Odds Ratios (95% Confidence intervals)
   Population Number of Cases Population Number of Cases  
Overall   38,619 211 (0.5%) 7484 54 (0.7%) 1.32 (0.95–1.86)
Sex Male 16,315 122 (0.7%) 3145 30 (1.0%) 1.28 (0.80–2.04)
Female 22,304 89 (0.4%) 4339 24 (0.6%) 1.39 (0.89–2.17)
Location Urban 13,783 126 (0.9%) 2274 19 (0.8%) 0.92 (0.58–1.44)
Rural 24,836 85 (0.3%) 5210 35 (0.7%) 1.97 (1.35–2.89)
Province Central 2403 12 (0.5%) 503 1 (0.2%) 0.40 (0.08–1.97)
Copperbelt 6608 74 (0.1%) 1628 19 (1.2%) 1.04 (0.51–2.14)
Eastern 5990 8 (0.1%) 1167 4 (0.3%) 2.57 (1.86–3.55)
Luapula 3013 7 (0.2%) 646 2 (0.3%) 1.33 (0.31–5.69)
Lusaka 7414 63 (0.9%) 1128 8 (0.7%) 0.83 (0.49–1.42)
Muchinga 1052 2 (0.2%) 199 0 (0.0%) NA
Northern 3296 17 (0.5%) 594 10 (1.7%) 3.31 (1.81–6.05)
North Western 2310 9 (0.4%) 530 4 (0.8%) 1.94 (1.24–3.06)
Southern 5089 11 (0.2%) 594 4 (0.7%) 3.12 (0.74–13.19)
Western 1444 8 (0.6%) 495 2 (0.4%) 0.73 (0.29–1.82)
Employment Status a Unemployed 17,951 102 (0.6%) 2779 22 (0.8%) 1.40 (0.84–2.33)
Employed 20,405 109 (0.5%) 4494 29 (0.6%) 1.21 (0.82–1.79)
Highest Level of Education No Schooling 2172 8 (0.4%) 2107 18 (0.9%) 2.33 (0.99–5.49)
Primary 16,759 98 (0.6%) 3916 24 (0.6%) 1.05 (0.61–1.79)
Secondary 18,081 100 (0.6%) 1243 9 (0.7%) 1.32 (0.68–2.55)
Tertiary 1576 5 (0.3%) 218 3 (1.4%) 4.35 (0.73–25.85)
Socioeconomic Status b Lowest 7374 31 (0.4%) 1474 4 (0.3%) 0.65 (0.26–1.63)
Lower 6765 29 (0.4%) 1366 8 (0.6%) 1.37 (0.69–2.73)
Middle 7099 51 (0.7%) 1370 14 (1.0%) 1.43 (0.64–3.18)
Higher 5914 39 (0.7%) 1123 14 (1.2%) 1.90 (0.93–3.91)
Highest 4991 25 (0.5%) 849 3 (0.4%) 0.70 (0.21–2.40)
  1. Denominator is the total number of eligible individuals who took part in the study and fit into the relevant category being assessed
  2. aEmployed includes occasional seasonal workers, government employees, private sector employees, self-employed, working on own land. Unemployed includes unemployed, students and housewife/homemakers
  3. bSocioeconomic status was determined by deriving wealth indices using data collected on household assets, housing characteristics and access to utilities. This was achieved using the standard asset ownership questionnaire used in the Zambia Demographic Health Surveys
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