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Table 1 Investigated potential indicators of PTB in Zhaotong

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

Biological aspects Behavioural aspects Socio-economic aspects Local environment aspects
Agea Alcohol intakee Annual family income (yuan)k Residence locationp
Genderb Chronic fatigue or overworkf Below poverty levelc Family sizeq
BCG vaccinationc1 Frequent Internet café visitsc CDC (km from residence)l Number of persons per roomr
BMId Marital statusg CDC (minutes from residence)m Living space per persons
Hormone therapyc Migrant workc Educational leveln Windows per m2 of family spacet
Cancerc Smoking (active)h Health insurancec1 Frequently keeping windows open c1
Chronic bronchitisc Smoking (passive)i Occupationo Coal used for cooking/heatingc
Diabetesc Spitting habitc   Electricity used for cooking/heatingc
HIV/AIDSc    Firewood used for cooking/heatingc
Kidney diseasec    Natural/biogas used for cooking/heatingc
Mental diseasec    Other energy source for cooking/heatingc
Parasitic diseasec    PTB patient(s) living nearbyc
Pneumoconiosisc    Contact with PTB patient(s)c
Otherc    
  1. Abbreviations: AIDS Acquired immune deficiency syndrome, BMI Body mass index, CDC Zhaotong Center for Disease Control, HIV Human immunodeficiency virus
  2. Definitions: a <  15 = 1/15–29 = 2/30–44 = 3/45–59 = 4/≥60 = 5; bmale = 1/female = 0; c1no = 1/yes = 0; cyes = 1/no = 0,d <  18.5 = 1/≥25 = 2/18.5–24.9 = 3; enever = 1/in the past = 2/currently = 3; fyes(light or heavy = 1/no = 0; gunmarried = 1/married or remarried = 2/divorced or widowed = 3; hnever = 1/past smoker = 2/current smoker = 3; ino exposure = 1/light exposure = 2/heavy exposure = 3; k <  2000 = 1/2000–5000 = 2/5001–10 000 = 3; l ≥ 10 001 = 4 <  15 = 1/15–30/31–60/≥61; m <  31 = 1/31–60 = 2/61–120 = 3/≥121; nprimary school or below = 1/middle or technical secondary school = 2/junior college and above = 3; ofarmer or migrant worker = 1/other = 2/unemployed = 3/student = 4; purban = 1/rural = 0; q <  3 = 1/3–4 = 2/5–6 = 3/> 7 = 4; r ≤ 1 = 1/1.6–2 = 2/> 2 = 3; s ≤ 10 m2 = 1/11–25 m2 = 2/26–50 m2 = 3/> 50 m2 = 4; tlow(< 0.05) = 1/medium(0.05–0.077) = 2/high(> 0.077) = 3