Table 4.
Interval in Months Before Switch | |||||
---|---|---|---|---|---|
Mean | SD | Range | p=0.051 | ||
Group 1 | 1.5 | 0.4 | 1–2.4 | ||
Group 2 | 1.7 | 0.3 | 1.1–2.4 | ||
Interval in Months After Switch | |||||
Mean | SD | Range | p=0.006 | ||
Group 1 * | 4.4 | 3.8 | 1.2–12 | ||
Group 2 * | 1.9 | 0.8 | 1.2–4 |
Notes: *Statistical comparison within the groups (group 1: p=0.001; group 2: p=0.750).
Abbreviation: SD, standard deviation.