Skip to main content

Table 2 Distribution of cases clustered and non-clustered in our sample according to potential associated factors

From: Migration and tuberculosis transmission in a middle-income country: a cross-sectional study in a central area of São Paulo, Brazil

Characteristics (N) Clusters (n = 195) Unique profiles (n = 152) Univariate logistic regression  
N (%) N (%) Crude OR (95% CI) p value
Mean Age in years (SD) 35.3 (13.5) 35.6 (13.5) 1.00 (0.98–1.02) 0.868
Sex
 Male 140 (71.8) 110 (72.4) 1.00  
 Female 55 (28.2) 42 (27.6) 1.03 (0.64–1.65) 0.906
Nationality
 Brazilian 160 (82.1) 106 (69.7) 1.00  
 South American migrant 35 (17.9) 46 (30.3) 0.50 (0.30–0.83) 0.008
Education in years
 0–3 8 (4.9) 12 (10.0) 1.00  
 4–7 52 (31.7) 36 (30.0) 2.17 (0.80–5.83) 0.126
 8–11 81 (49.4) 50 (41.7) 2.43 (0.93–6.36) 0.070
 12+ 23 (14.0) 22 (18.3) 1.57 (0.54–4.56) 0.409
Worker
 Yes 140 (77.3) 109 (77.3) 1.00  
 Retired/housewife 12 (6.6) 11 (7.8) 0.85 (0.36–2.00) 0.708
 Unemployed 24 (13.3) 19 (13.5) 0.98 (0.51–1.89) 0.960
 Prisoners 5 (2.8) 2 (1.4) 1.95 (0.37–10.22) 0.431
PTB incidencea in district of residence
  < 40 64 (32.8) 47 (30.9) 1.00  
 40–80 74 (38.0) 55 (36.2) 0.99 (0.59–1.65) 0.963
  > 80 57 (29.2) 50 (32) 0.84 (0.49–1.43) 0.515
Case type
 New 145 (75.1) 117 (80.1) 1.00  
 Retreatment/relapse 48 (24.9) 29 (19.9) 1.33 (0.73–2.25) 0.277
Sputum smear
 Negative 46 (24.3) 25 (16.7) 1.00  
 Positive 143 (75.7) 125 (82.3) 0.62 (0.36–1.07) 0.086
Diagnosis 184 (94.4) 140 (92.7) 1.00  
 Passive 11 (5.6) 11 (7.3) 0.76 (0.32–1.81) 0.535
 Active case finding     
Drug resistance
 No 158 (89.8) 122 (85.9) 1.00  
 Yes 18 (10.2) 20 (14.1) 0.69 (0.35–1.37) 0.294
Treatment outcome
 Cure 128 (70.7) 106 (73.1) 1.00  
 Loss of follow-up 41 (22.7) 30 (20.7) 1.13 (0.66–1.94) 0.651
 Death/failure 12 (6.6) 9 (6.2) 1.10 (0.45–2.72) 0.829
Household contacts
 0 16 (14.7) 11 (11.5) 1.00  
 1–2 41 (37.6) 33 (34.4) 0.85 (0.35–2.09) 0.730
 3–4 19 (17.4) 24 (25.0) 0.54 (0.20–1.44) 0.222
 5+ 33 (30.3) 28 (29.2) 0.81 (0.32–2.03) 0.653
Treatment delay in weeks
 0–2 12 (16.0) 14 (23.7) 1.00  
 3–4 24 (32.0) 11 (18.6) 2.55 (0.89–7.27) 0.081
 5–11 15 (20.0) 17 (28.8) 1.03 (0.36–2.91) 0.956
 12 or more 24 (32.0) 17 (28.8) 1.65 (0.62–4.43) 0.323
Alcohol abuse
 No 166 (85.1) 131 (86.2) 1.00  
 Yes 30 (14.9) 21 (13.8) 1.09 (0.59–2.00) 0.781
Drug use
 No 154 (79.0) 135 (88.8) 1.00  
 Yes 41 (21.0) 17 (11.2) 2.11 (1.15–3.89) 0.016
TB/HIV co-infection
 No 126 (70.8) 106 (79.1) 1.00  
 Yes 52 (29.2) 28 (20.9) 1.56 (0.92–2.65) 0.097
Diabetes
 No 189 (96.9) 143 (94,1) 1.00  
 Yes 6 (3.1) 9 (5.9) 0.50 (0.18–1.45) 0.204
  1. The percentage in brackets is calculated based on non-missing data. The difference between the total number of Brazilians, South American migrants or Total and each variable category corresponds to missing data
  2. aIncidence per 100,000 person years