Statistics
Statistical analyses were performed with SPSS V.17.0. All
costs are presented in Euro (V) (V1¼8.94 Swedish
crowns, V1¼1.43 US dollars ($) (19 April 2011)).
Student t test was used for comparisons between groups;
this method is considered most appropriate for health
economics analysis although skewed distribution can be
expected.20 Where appropriate, values are presented
both as mean6SD and median (IQR) to illustrate the
skewed distribution. The study had a short time span,
and costs were therefore not discounted.