Table 1.
Characteristics of study subjects at baseline
| Caffeine-based topical 0.2% liquid (n = 105) | Minoxidil 5% solution (n = 105) | ||
|---|---|---|---|
| Hamilton-Norwood stage, % subjects | |||
| Grade III | 28.6 | 28.6 | |
| Grade III vertex | 17.1 | 22.9 | |
| Grade IIIA | 7.6 | 15.2 | |
| Grade IV | 28.6 | 20.0 | |
| Grade IVA | 3.8 | 2.9 | |
| Grade V | 14.3 | 10.5 | |
| Telogen hairs, mean % | 36.5 | 36.2 | |
| Frontal trichogram | |||
| Anagen hairs | 36.4 (13.7)/39 (0–60) | 35.3 (15.7)/41 (0–62) | |
| Telogen hairs | 29.2 (9.5)/28 (13–69) | 28.7 (9.6)/27 (10–75) | |
| Dystrophic hairs | 8.2 (7.6)/6 (0–29) | 9.6 (9.6)/7 (0–42) | |
| Total hair count | 73.8 (8.2)/73 (60–100) | 73.6 (8.0)/73 (60–97) | |
| Occipital trichogram | |||
| Anagen hairs | 40.7 (16.4)/46 (1–74) | 39.4 (18.3)/44 (0–74) | |
| Telogen hairs | 25.0 (10.5)/23 (8–76) | 24.8 (10.3)/24 (6–65) | |
| Dystrophic hairs | 9.6 (10.1)/7 (0–44) | 10.7 (11.4)/8 (0–50) | |
| Total hair count | 75.4 (8.0)/74 (61–95) | 74.9 (8.0)/74 (61–95) | |
| Frontal + occipital trichogram | |||
| Anagen hairs | 77.2 (28.8)/85 (1–134) | 74.7 (33.3)/87 (1–135) | |
| Telogen hairs | 54.2 (17.3)/51 (26–145) | 53.5 (18.0)/51 (27–140) | |
| Dystrophic hairs | 17.8 (16.4)/16 (0–64) | 20.4 (20.3)/16 (0–80) | |
| Total hair count | 149.1 (13.4)/147 (123–180) | 148.6 (13.1)/148 (123–177) | |
For trichogram data, mean numbers with standard deviations in parentheses are given, followed by medians with ranges in parentheses.