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Table 5 Univariate analysis of PTB and socio-economic factors

From: Space-time clustering and associated risk factors of pulmonary tuberculosis in southwest China

Variable Group Outside the cluster Within the cluster χ 2 P-value OR (95% CI)
No. % No. %
Annual family income (yuan) < 2000 183 26.3 129 15.9 12.396 0.000 0.445 (0.283–0.698)
2000–5000 295 42.4 422 51.9 0.232 0.630 0.902 (0.594–1.371)
5001–10 000 176 25.3 197 24.2 2.398 0.122 0.706 (0.454–1.097)
≥ 10 001 41 5.9 65 8    1.000
Below poverty level Yes 131 19.6 147 20 0.038 0.845 1.027 (0.789–1.335)
No 537 80.4 587 80    1.000
Educational level Primary school and below 446 64.2 441 54.2 1.267 0.260 0.688 (0.359–1.320)
Middle school 233 33.5 349 42.9 0.015 0.903 1.042 (0.539–2.015)
Junior college and above 16 2.3 23 2.8    1.000
Occupation Farmer or migrant worker 583 83.9 650 80 12.023 0.001 0.509 (0.347–0.746)
Other work 41 5.9 54 6.6 3.335 0.068 0.601 (0.348–1.038)
Unemployed 29 4.2 17 2.1 13.577 0.000 0.268 (0.133–0.540)
Student 42 6 92 11.3    1.000
Medical insurance No 9 1.3 7 0.9 0.663 0.415 0.662 (0.245–1.787)
Yes 686 98.7 806 99.1    1.000
Distance from medical facility (km) < 15 162 23.4 222 27.5 0.693 0.405 1.129 (0.849–1.502)
15–30 150 21.7 161 20 0.646 0.421 0.884 (0.655–1.194)
31–60 207 29.9 213 26.4 1.361 0.243 0.848 (0.642–1.119)
≥ 61 173 25 210 26.1    1.000
Time to reach medical facility (min) < 31 172 24.9 186 23 0.455 0.500 1.103 (0.829–1.469)
31–60 148 21.4 156 19.3 0.228 0.633 1.076 (0.798–1.450)
61–120 172 24.9 269 33.3 11.128 0.001 1.596 (1.213–2.100)
≥ 121 200 28.9 196 24.3    1.000