Table 1 Baseline age (year) and gender of the sample
Group | Laser | Control | Total | |||
|---|---|---|---|---|---|---|
Sex | Male | Female | Male | Female | Male | Female |
Number | 5 | 10 | 7 | 8 | 12 | 18 |
Mean age (year) | 20.3 | 21.9 | 21.3 | 21.3 | 20.9 | 21.6 |
Standard deviation | 3.4 | 3.3 | 3.6 | 3.4 | 3.4 | 3.3 |
Minimum | 17 | 19 | 18 | 18 | 17 | 18 |
Maximum | 25 | 29 | 28 | 28 | 28 | 29 |
95% CI upper limit | 16.0 | 19.5 | 17.9 | 18.5 | 18.7 | 20.0 |
95% CI lower limit | 24.6 | 24.3 | 24.6 | 24.2 | 23.0 | 23.3 |