Of all HIV screenings conducted among the study participants (76.1%, 979/1286): 81.2% (795/979) were done by the routine TB staff, 18.8% (184/979) were done by the study field workers. Therefore, if the study staff had not conducted additional efforts to those of the routine staff to screen TB patients for HIV, coverage of HIV screening among new TB patients would have been 61.8% (795/1286). Table 1 describes the characteristics of patients that were screened, of those opting out and of those not screened for unknown reasons.Table 1Characteristics of patients with a first episode of tuberculosis by their HIV screening status, San Juan de Lurigancho, 2010–2011CharacteristicsScreenedNot screened for unknown reasonsOpted out of screeningN (%)N (%)N (%)Sex Female394 (39.9%)69 (36.3%)39 (33.1%) Male593 (60.1%)121 (63.7%)79 (66.9%)Age, in years 18–34721 (73.0%)137 (72.1%)83 (71.0%) 35–49210 (21.3%)41 (21.6%)24 (20.5%) > 5057 (5.7%)12 (6.3%)10 (8.5%)Weight loss reported by the patient Yes798 (81.1%)162 (85.3%)94 (79.7%) No186 (18.9%)28 (14.7%)24 (20.3%)Location of health facility in district area Lowest area199 (20.2%)25 (13.2%)8 (6.8%) Middle area314 (31.8%)35 (18.4%)12 (10.2%) Highest area259 (26.2%)73 (38.4%)63 (53.4%) High area215 (21.8%)57 (30.0%)35 (29.6%)Education Primary school or less400 (40.6%)87 (45.8%)60 (50.8%) High school365 (37.0%)67 (35.3%)36 (30.6%) Higher education221 (22.4%)36 (18.9%)22 (18.6%)Socioeconomic status Poor240 (26.0%)48 (27.3%)30 (28.3%) Not poor685 (74.0%)128 (72.7%)76 (71.7%)Marital status Married / cohabiting369 (37.4%)65 (34.3%)53 (45.0%) Divorced72 (7.3%)16 (8.4%)5 (4.2%) Single521 (52.8%)101 (53.1%)56 (47.5%) Widow25 (2.5%)8 (4.2%)4 (3.3%)Illegal drug consumption No838 (84.9%)140 (73.7%)99 (83.9%) Yes149 (15.1%)50 (26.3%)19 (16.1%)Alcohol consumption (CAGE score) Alcoholism52 (8.9%)13 (10.7%)7 (9.3%) No alcoholism534 (91.1%)109 (89.3%)68 (90.7%)Ex prison inmate Yes49 (5.0%)8 (4.2%)4 (3.4%) No936 (95.0%)182 (95.8%)114 (96.6%)Diabetes mellitus, as reported by the patient Yes41 (4.2%)9 (4.7%)5 (4.2%) No944 (95.8%)181 (95.3%)113 (95.8%)Type of TB treatment regimen Regimen for drug sensitive TB970 (98.3%)189 (99.5%)116 (98.3%) Regimens for drug resistant TB17 (1.7%)1 (0.5%)2 (1.7%)Employment Yes695 (70.4%)138 (72.6%)83 (70.3%) No190 (19.3%)40 (21.1%)21 (17.8%) Student102 (10.3%)12 (6.3%)14 (11.9%)Study period 1261 (26.4%)39 (20.5%)34 (28.8%) 2233 (23.6%)42 (22.1%)28 (23.7%) 3258 (26.2%)64 (33.7%)18 (15.3%) 4235 (23.8%)45 (23.7%)38 (32.2%)Place of birth Coastal region611 (62.0%)116 (61.1%)74 (62.7%) Jungle region138 (14.0%)27 (14.2%)19 (16.1%) Andean region237 (24.0%)47 (24.7%)25 (21.2%)