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Table 1 Between groups comparisons regarding sociodemographic and clinical data

From: Cocaine use disorder in females is associated with altered social decision-making: a study with the prisoner’s dilemma and the ultimatum game

  Controls (n = 55) CUD (n = 129) Statistics p-value
Sociodemographic
 Age (years) – mean (SD) 26 (8.19) 30.43 (7.86) t = 3.47 0.001
 Ethnicity (white) % (n) 53.4 (69) 66.6 (37) χ2 = 3.53 0.316
 Income (R$) – mean (SD) 2697.8 (2431.4) 2017.1 (2663.5) t = 1.63 0.103
 Years of formal education – mean (SD) 12.55 (4.28) 8.99 (3.71) t = 5.71 0.001
 Marital status (single) % (n) 53.6 (30) 53.5 (69) χ2 = 0.001 0.992
 Previous detention % (n) 1.8 (1) 20.2 (26) χ2 = 10.57 0.001
 Number of psychiatric hospitalizations – mean (SD) 0.05 (0.29) 1.42 (2.77) t = 3.68 0.001
 Craving for chocolate – mean (SD) 6.26 (2.87) 7.12 (2.90) t = 1.84 0.066
Patterns of alcohol use
 Reported consumption % (n) 87 (48) 96 (124) χ2 = 8.42 0.015
 Age of drug experimentation (year) – mean (SD) 15.19 (3.06) 14.25 (3.74) t = 1.53 0.126
Patterns of tobacco use
 Reported consumption % (n) 57 (31) 100 (129) χ2 = 47.76 0.001
 Age of drug experimentation (year) – mean (SD) 16.43 (5.35) 13.67 (3.09) t = 3.75 0.009
Patterns of cannabis use
 Reported consumption % (n) 23 (13) 72 (94) χ2 = 88.83 0.001
 Age of drug experimentation (year) – mean (SD) 16.23 (2.04) 17.70 (11.77) t = 0.44 0.655
 Drug use over time (days) – mean (SD) 169.82 (801) 2744.67 (2865) t = 9.35 0.001
Patterns of cocaine use
 Reported consumption % (n) 100 (129) χ2 = 93.93 0.001
 Age of drug experimentation (year) – mean (SD) 19.1 (5.77)   
 Drug use over time (days) – mean (SD) 3571.62 (1931)   
 Only snorted cocaine consume - % (n)   13 (10%)   
 Only smoked cocaine consume - % (n)   7 (5%)   
 Combined smoked and snorted cocaine consume - % (n)   109 (85%)   
  1. Legend: Control – Healthy control females without a history of substance abuse; CUD – Females diagnosed with Cocaine Use Disorder