Table 2.
The validation results for the rule-based classifier.a
| Category | Motivations, n (%) | Consequence, n (%) | Neither, n (%) | Totalb, n | |||||
| Medical term | |||||||||
|
|
Cancer | 15 (42.9) | 4 (11.4) | 16 (45.7) | 35 | ||||
|
|
Cardiovascular | 1 (20) | 1 (20) | 3 (60) | 5 | ||||
|
|
Cognitive | 5 (18.5) | 3 (11.2) | 19 (70.3) | 27 | ||||
|
|
Death | 4 (4) | 7 (8) | 79 (88) | 90 | ||||
|
|
Dermatological | 0 (0) | 0 (0) | 4 (100) | 4 | ||||
|
|
Gastrointestinal | 6 (21) | 1 (3) | 22 (76) | 29 | ||||
|
|
Immune system | 2 (6) | 2 (6) | 31 (88) | 35 | ||||
|
|
Injury | 1 (2) | 5 (9) | 49 (89) | 55 | ||||
|
|
Mental health | 89 (31.8) | 19 (6.7) | 172 (61.4) | 280 | ||||
|
|
Neurological | 18 (11.3) | 40 (25) | 102 (63.7) | 160 | ||||
|
|
Other | 33 (26.6) | 7 (5.6) | 84 (67.8) | 124 | ||||
|
|
Pain | 28 (25.7) | 3 (2.8) | 78 (71.5) | 109 | ||||
|
|
Poison | 2 (8.3) | 6 (25) | 16 (66.7) | 24 | ||||
|
|
Pregnant | 2 (14.3) | 2 (14.3) | 10 (71.4) | 14 | ||||
|
|
Respiratory | 0 (0) | 17 (36.2) | 30 (63.8) | 47 | ||||
|
|
Stress | 17 (44.7) | 1 (2.6) | 20 (52.7) | 38 | ||||
|
|
Weight | 0 (0) | 0 (0) | 16 (100) | 16 | ||||
| Totalc | 223 (20.4) | 118 (10.8) | 751 (68.8) | 1092d | |||||
aThe values in the Motivations, Consequence, and Neither columns show the number and percentage of posts related to health-related motivations for cannabis use, health-related consequences from cannabis use, or neither, respectively, for each medical term.
bThe Total column refers to the total number of tweets coded per medical term.
cThe values in the Total row show the number and percentage of posts related to health-related motivations for cannabis use, health-related consequences from cannabis use, or neither, respectively, for all medical terms.
dThe total number of tweets in the subgroup.