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Table 1 Baseline characteristics of participants

From: Withdrawing attempt and its related factors among Iranian substance users: a case-control study

Variables Current users (n = 142) In treatment for substance use disorder (n = 187) p-value* Test value
Quantitative measures Mean ± SD Mean ± SD   
Age 34.49 ± 9.63 34.81 ± 9.00 0.76** −0.29
Duration of drug usage (year) 9.77 ± 8.86 11.19 ± 6.83 0.93** 1.11
Age of starting cigarette (year) 17.82 ± 5.43 17.55 ± 4.68 0.67** 0.42
Amount of drug used (times per day) 2.53 ± 2.26 2.89 ± 3.15 0.34**  
Qualitative measures N(%) N(%)   
Marital statues
 Single 59 (42.14) 80 (43.72) 0.77 0.08
 Married 81 (57.86) 103 (56.28)   
Number of sisters
 No sister 6 (4.58) 9 (5.52) 0.47 1.47
 1 28 (21.37) 26 (15.95)   
 ≥2 97 (74.05) 128 (78.53)   
Number of brothers
 No brother 4 (2.99) 5 (2.96) 0.44 1.63
 1 19 (14.18) 16 (9.47)   
 ≥2 111 (82.84) 148 (87.57)   
Education
 Illiterate/primary 29 (22.31) 21 (11.54) 0.006 14.47
 Secondary 39 (30.00) 63 (34.62)   
 High 6 (4.62) 22 (12.09)   
 Diploma 34 (26.15) 58 (31.87)   
 University 22 (16.92) 18 (9.89)   
Criminal history
 No 55 (55.00) 73 (51.77) 0.62 0.24
 Yes 45 (45.00) 68 (48.23)   
Living with spouse (if married)
 No 65 (80.25) 70 (65.42) 0.02 5.00
 Yes 16 (19.75) 37 (34.58)   
Dependence among relatives
 No 77 (62.60) 124 (75.15) 0.02 5.26
 Yes 46 (37.40) 41 (24.85)   
Mother’s education
 Illiterate 20 (19.42) 33 (22.76) 0.77 0.51
 Primary/ secondary 14 (13.59) 21 (14.48)   
 High school/university 69 (66.99) 91 (62.76)   
Father’s education
 Illiterate 20 (18.35) 48 (31.79) 0.005 10.54
 Primary/ secondary 18 (16.51) 35 (23.18)   
 High school/university 71 (65.14) 68 (45.03)   
Mother’s job
 House holder 114 (94.21) 158 (96.93) 0.26 1.26
 Employed 7 (5.79) 5 (3.07)   
Lived with family when was/is single
 Lived alone 41 (30.15) 46 (26.14) 0.43 0.61
 Living with parents 95 (69.85) 130 (73.86)   
Do you Smoke
 No 38 (27.14) 18 (10.00) < 0.001 16.03
 Yes 102 (72.86) 162 (90.00)   
Family were aware of your dependence?
 No 60 (62.50) 84 (54.55) 0.21 1.53
 Yes 36 (37.50) 70 (45.45)   
  1. * Based on Chi-squire test; **Based on student t-test