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Table 1 Demographic and behavior characteristics of participants in a cohort study among people who inject drugs in Kerman, Iran

From: Proportion and reasons for loss to follow-up in a cohort study of people who inject drugs to measure HIV and HCV incidence in Kerman, Iran

Characteristics Total (N = 98) Lost to Follow-up (N = 50) Retained in the cohort
(N = 48)
P-Value
Sex
 Female 14 (14.3%) 6 (12.0%) 8 (16.7%)  
 Male 84 (85.7%) 44 (88.0%) 40 (83.3%) 0.509
Age
 Mean ± SD 39.75 ± 9.64 37.96 ± 8.86 41.79 ± 10.14 0.049
Ever homeless
 No 8 (8.2%) 4 (8.0%) 4 (8.5%) 0.927
 Yes 90 (91.8%) 46 (92.0%) 43 (91.5%)
Education
 Primary or less 37 (37.8%) 18 (36.0%) 19 (39.6%) 0.619
 Some or completed secondary or high school 53 (54.1%) 29 (58.0%) 24 (50.0%)
 University 8 (8.1%) 3 (6.0%) 5 (10.4%)
Living with their spouse/partner
 Yes (i.e., married, live with partners) 14 (14.2%) 8 (16.0%) 6 (12.5%)  
 No (i.e., single, married but live alone, widowed) 84 (85.8%) 42 (84.0%) 42 (87.5%) 0.621
Job Status
 Unemployed 23 (23.5%) 10 (20.0%) 13 (27.1%)  
 Employed 75 (76.5%) 40 (80.0%) 35 (72.9%) 0.408
Monthly income
 Under 1,000,000 T (<$100) 65 (66.3%) 34 (68.0%) 31 (64.6%) 0.303
 1,000,000-4,999,999 T ($100–499) 31 (31.6%) 14 (28.0%) 17 (35.4%)
 5,000,000 T or more (>$500) 2 (2.1%) 2 (4.0%) 0
Alcohol use in the last 12 months
 No 77 (79.4%) 36 (73.5%) 40 (85.1%) 0.160
 Yes 20 (20.6%) 13 (26.5%) 7 (14.9%)
Injecting frequency reported in the last 3 months
 No recent injection 15 (15.3%) 11 (22.5%) 4 (8.3%) 0.160
 < weekly 34 (34.7%) 16 (32.6%) 18 (37.5%)
 < not daily but at least weekly (i.e., weekly) 22 (22.5%) 8 (16.3%) 14 (29.2%)
 Daily 27 (27.5%) 14 (28.6%) 12 (25.0%)
Injected with another person in the last 12 months
 No 35 (35.8%) 18 (36.0%) 17 (36.2%) 0.986
 Yes 63 (64.2%) 32 (64.0%) 30 (63.8%)
Receptive injecting equipment sharing in the last 12 months
 No 90 (91.9%) 44 (88.0%) 46 (95.8%) 0.157
 Yes 8 (8.1%) 6 (12.0%) 2 (4.2%)
Receptive syringe sharing in the last 12 months
 No 92 (93.9%) 46 (92.0%) 46 (95.8%) 0.429
 Yes 6 (6.1%) 4 (8.0%) 2 (4.2%)
Ever history of drug overdose
 No 57 (58.1%) 26 (52.0%) 31 (64.6%) 0.207
 Yes 41 (41.9%) 24 (48.0%) 17 (35.4%)