Cough Drop Users: Menthol Versus Nonmenthol Comparisons*
| Menthol (N = 269) | Nonmenthol (N = 31) | P-Value† | |
|---|---|---|---|
| Cough severity (7-point ordinal scale), median (25th to 75th percentile) | 6 (1 to 7) | 6 (2 to 7) | .65 |
| Severity category, n (%) | |||
| Very mild | 0 (0.0) | 2 (0.8) | .80 |
| Mild | 18 (6.8) | 2 (6.5) | |
| Mild/moderate | 2 (0.8) | 0 (0.0) | |
| Moderate | 72 (27.1) | 12 (38.7) | |
| Moderate/severe | 25 (9.4) | 1 (3.2) | |
| Severe | 111 (41.7) | 12 (38.7) | |
| Very severe | 36 (13.5) | 4 (12.9) | |
| Duration (days), mean (SD) | 13.1 (9.9) | 10.7 (9.1) | .17 |
| Cough Drops | |||
| No. Days Used, n (%) | |||
| 0 to 3 days | 85 (32.0) | 13 (41.9) | .36 |
| 4 to 7 days | 79 (29.7) | 12 (38.7) | |
| 8 to 10 days | 40 (15.0) | 2 (6.5) | |
| 11 to 14 days | 16 (6.0) | 1 (3.2) | |
| 14 + days | 46 (17.3) | 3 (9.7) | |
| No. used per day, n (%) | |||
| 0 to 5 | 163 (61.7) | 17 (54.8) | .73 |
| 6 to 10 | 68 (25.8) | 9 (11.7) | |
| 11 to 15 | 23 (8.7) | 3 (9.7) | |
| 16 to 20 | 8 (3.0) | 1 (3.2) | |
| 20+ | 2 (0.8) | 1 (3.2) | |
| Daily menthol dose (mg) | |||
| Mean (SD) | 23.1 (22.0) | 0.0 | — |
| Range | 1.1 to 117.9 | 0.0 to 0.0 |