Table 4.
Cross-tabulations and unadjusted odds ratios of type of cannabis user by sociodemographics, health status, academic performance, peer integration, other substance use, and life satisfaction for girls only
| Never used* (n = 2064) | Frequent user (n = 722) | OR (95% CI)† | Heavy user (n = 358) | OR (95% CI)† | |
|---|---|---|---|---|---|
| Grade (no. (%)) | |||||
| 7–8‡ | 616 (30.0) | 135 (18.8) | 1.00 | 35 (9.9) | 1.00 |
| 9 | 427 (20.8) | 121 (16.9) | 1.29 (0.98–1.70) | 57 (16.1) | 2.35 (1.52–3.64) |
| 10 | 518 (25.2) | 217 (30.2) | 1.91 (1.50–2.44) | 100 (28.2) | 3.40 (2.27–5.08) |
| 11 | 322 (15.7) | 164 (22.8) | 2.32 (1.78–3.03) | 98 (27.6) | 5.36 (3.56–8.06) |
| 12 | 169 (8.2) | 81 (11.3) | 2.19 (1.58–3.02) | 65 (18.3) | 6.77 (4.34–10.56) |
| Ethnicity (no. (%)) | |||||
| White‡ | 1487 (73.4) | 549 (76.9) | 1.00 | 234 (66.7) | 1.00 |
| Aboriginal | 238 (11.7) | 120 (16.8) | 1.37 (1.07–1.74) | 94 (26.8) | 2.51 (1.91–3.31) |
| Other | 301 (14.9) | 45 (6.3) | 0.41 (0.29–0.56) | 23 (6.6) | 0.49 (0.31–0.76) |
| Self-reported economic status of family compared with rest of BC (no. (%)) | |||||
| Better‡ | 753 (38.6) | 200 (29.2) | 1.00 | 98 (29.1) | 1.00 |
| About the same | 1018 (52.2) | 372 (54.3) | 1.38 (1.13–1.67) | 165 (49.0) | 1.25 (0.95–1.63) |
| Worse | 180 (9.2) | 113 (16.5) | 2.36 (1.78–3.13) | 74 (22.0) | 3.16 (2.24–4.45) |
| Physical health (no. (%)) | |||||
| Excellent‡ | 517 (25.2) | 103 (14.4) | 1.00 | 24 (6.8) | 1.00 |
| Very good | 874 (42.6) | 271 (37.8) | 1.56 (1.21–2.00) | 84 (23.7) | 2.07 (1.30–3.30) |
| Good | 538 (26.2) | 254 (35.4) | 2.37 (1.83–3.07) | 169 (47.7) | 6.77 (4.34–10.55) |
| Fair/poor | 124 (6.0) | 89 (12.4) | 3.60 (2.55–5.09) | 77 (21.8) | 13.38 (8.13–22.02) |
| Mental health (no. (%)) | |||||
| Excellent‡ | 644 (31.8) | 115 (16.2) | 1.00 | 35 (9.9) | 1.00 |
| Very good | 729 (36.0) | 216 (30.5) | 1.66 (1.29–2.13) | 69 (19.4) | 1.74 (1.14–2.65) |
| Good | 447 (22.1) | 209 (29.5) | 2.62 (2.02–3.39) | 118 (33.2) | 4.86 (3.27–7.22) |
| Fair/poor | 206 (10.2) | 169 (23.8) | 4.59 (3.46–6.10) | 133 (37.5) | 11.88 (7.93–17.79) |
| Depressive symptoms (no. (%)) | |||||
| Minimal‡ | 1300 (65.7) | 323 (46.4) | 1.00 | 128 (37.8) | 1.00 |
| Mild | 313 (15.8) | 148 (21.3) | 1.90 (1.51–2.40) | 70 (20.6) | 2.27 (1.66–3.12) |
| Moderate/severe | 366 (18.5) | 225 (32.3) | 2.47 (2.01–3.04) | 141 (41.6) | 3.91 (3.00–5.11) |
| Academic performance compared to other students at school (no. (%)) | |||||
| Above average‡ | 802 (41.8) | 139 (21.1) | 1.00 | 43 (13.1) | 1.00 |
| Slightly above average | 459 (23.9) | 131 (19.8) | 1.65 (1.26–2.15) | 62 (19.0) | 2.52 (1.68–3.78) |
| About average | 452 (23.6) | 243 (36.8) | 3.10 (2.44–3.94) | 111 (33.9) | 4.58 (3.16–6.63) |
| Slightly below average | 116 (6.1) | 86 (13.0) | 4.28 (3.07–5.96) | 59 (18.0) | 9.49 (6.12–14.71) |
| Below average | 88 (4.6) | 61 (9.2) | 4.00 (2.76–5.81) | 52 (15.9) | 11.02 (6.96–17.46) |
| Feel like an outsider at school (no. (%)) | |||||
| Never‡ | 276 (14.6) | 111 (17.1) | 1.00 | 57 (17.9) | 1.00 |
| Rarely | 902 (47.9) | 305 (47.0) | 0.84 (0.65–1.09) | 129 (40.4) | 0.69 (0.49–0.97) |
| Some of the time | 507 (26.9) | 161 (24.8) | 0.79 (0.60–1.05) | 84 (26.3) | 0.80 (0.56–1.16) |
| All or most of the time | 199 (10.6) | 72 (11.1) | 0.90 (0.64–1.27) | 49 (15.4) | 1.19 (0.78–1.82) |
| Number of drinks in past year (no. (%)) | |||||
| None or one sip‡ | 1086 (55.2) | 41 (5.9) | 1.00 | 12 (3.5) | 1.00 |
| Drank only at special events | 412 (20.9) | 53 (7.6) | 3.41 (2.23–5.20) | 16 (4.6) | 3.52 (1.65–7.49) |
| Once a month or less | 304 (15.4) | 196 (28.2) | 17.08 (11.92–24.47) | 50 (14.5) | 14.89 (7.83–28.31) |
| 2 or 3 times a month | 127 (6.4) | 219 (31.6) | 45.68 (31.21–66.85) | 99 (28.7) | 70.55 (37.70–132.02) |
| Once a week | 30 (1.5) | 112 (16.1) | 98.89 (59.41–164.59) | 71 (20.6) | 214.18 (105.18–436.17) |
| More than once a week | 10 (0.5) | 73 (10.5) | 193.36 (93.11–401.54) | 97 (28.1) | 877.85 (369.80–2083.91) |
| Number of cigarettes smoked in life (no. (%)) | |||||
| None‡ | 1690 (83.1) | 170 (23.8) | 1.00 | 20 (5.7) | 1.00 |
| 1 puff or few puffs | 209 (10.3) | 163 (22.8) | 7.75 (5.60–10.04) | 44 (12.5) | 17.79 (10.29–30.76) |
| 1–5 cigarettes | 59 (2.9) | 104 (14.6) | 17.52 (12.27–25.02) | 34 (9.6) | 48.70 (26.45–89.65) |
| 6–15 cigarettes | 29 (1.4) | 73 (10.2) | 25.02 (15.83–39.57) | 28 (7.9) | 81.59 (41.28–161.23) |
| 16–99 cigarettes | 30 (1.5) | 88 (12.3) | 29.16 (18.72–45.43) | 68 (19.3) | 191.53 (103.50–354.46) |
| >100 cigarettes | 16 (0.8) | 116 (16.2) | 72.07 (41.75–124.42) | 159 (45.0) | 839.72 (426.61–1652.87) |
| Satisfaction with self (mean (SD)) | 4.76 (0.74) | 4.64 (0.74) | 0.82 (0.73–0.92) | 4.60 (0.86) | 0.76 (0.66–0.88) |
| Satisfaction with family (mean (SD)) | 4.57 (0.99) | 3.92 (1.15) | 0.58 (0.53–0.63) | 3.74 (1.25) | 0.51 (0.46–0.57) |
| Satisfaction with friends (mean (SD)) | 5.24 (0.70) | 5.12 (0.76) | 0.79 (0.71–0.89) | 5.08 (0.85) | 0.73 (0.63–0.85) |
| Satisfaction with school (mean (SD)) | 3.94 (0.94) | 3.39 (0.93) | 0.55 (0.50–0.60) | 3.14 (1.01) | 0.43 (0.38–0.48) |
*
Reference group for statistical comparisons.
†
OR, unadjusted odds ratio; CI, confidence interval.
‡
Reference group.
SD, standard deviation.