Demographic and drug use data
| Parameter | Data (mean (SEM)) | Bivariate Student's t-tests p values | |||||
|---|---|---|---|---|---|---|---|
| Amphetamine (55) | Non-smokers (483) | Tobacco (107) | Methadone (68) | Amphet-control | Amphet-tobacco | Amphet-methadone | |
| Anthropometrics | |||||||
| Age | 34.44 (1.13) | 30.03 (0.51) | 30.76 (0.97) | 40.45 (1.15) | 0.0046 | 0.2574 | <0.0001 |
| Male sex, n (%) | 38 (69.1) | 335 (69.4) | 77 (72.0) | 42 (62.8) | 0.9095 | 0.8425 | 0.5111 |
| Longitudinal study, n | 88 | 651 | 128 | 86 | |||
| Height | 174.58 (1.09) | 173.56 (0.40) | 174.63 (0.82) | 171.7 (1.15) | 0.4103 | 0.6136 | 0.8200 |
| Weight | 76.75 (2.02) | 73.2 (0.64) | 75.51 (1.40) | 77.43 (2.14) | 0.0810 | 0.5039 | 0.2549 |
| Body mass index | 25.16 (0.60) | 24.26 (0.19) | 24.69 (0.39) | 26.16 (0.62) | 0.1296 | 0.0499 | 0.0020 |
| Drug use | |||||||
| Cigarettes/day | 17.45 (1.74) | 11.86 (0.89) | 15.85 (1.31) | <0.0001 | 0.9049 | 0.0205 | |
| Years of tobacco | 15 (3.21) | 16 | 25.9 (2.03) | 0.9049 | 0.6085 | 0.2223 | |
| Packet-years tobacco | 15.8 (4.56) | 9.6 | 27.86 (4.62) | 0.2302 | 0.0003 | 0.0223 | |
| Minutes after tobacco | 53.92 (18.96) | 257.86 (50.31) | 163.25 (42.84) | 0.6781 | 0.9744 | 0.0715 | |
| Heroin, dose (g/day) | 0.45 (0.07) | 0.05 (0.02) | 0.98 (0.18) | <0.0001 | <0.0001 | <0.0001 | |
| Heroin, duration (years) | 9.32 (1.26) | 0.06 (0.06) | 1.13 (0.45) | 19.95 (1.34) | <0.0001 | <0.0001 | 0.0057 |
| Heroin, dose-duration (g-year) | 6.07 (1.01) | 0.03 (0.03) | 0.39 (0.18) | 23.6 (6.04) | <0.0001 | 0.0018 | 0.4540 |