Statistics

Data were analysed using SPSS, version 25.0 for Windows. Data were reported as frequencies, mean or median. Non-parametric tests were used as the sample was small and/or not normally distributed. Statistical significance was set at *p* < 0.05. Wilcoxon's sign rank test was used for the study of paired observation variables. The Mann–Whitney U test was used for comparison of continuous variables. The Spearman correlation coefficient was used for the analysis of bivariate correlation.

## 2.3.3. Qualitative Data Collection and Analysis

A total of 21 narrative and semi-structured audio-taped interviews were performed as a family interview with the injured person together with 1–3 other family members. The interviews were transcribed verbatim. Only the texts from the injured persons were used to achieve the purpose of this study. One of the questions posed to the injured persons was how they perceived their recovery and well-being. Most interviews were carried out in the participant's home; otherwise at the participant's workplace or at the researcher's office. Three interviews were conducted by telephone or by video conference due to the great distances in northern Sweden. Qualitative content analysis was used to explore manifest interview text [54,55]. The text was read through to get a sense of the content. Then meaning units were sorted out and coded to meet the aim of the study. Thereafter, the codes were amalgamated into 2 categories, each with 3 subcategories.

#### *2.4. Ethical Considerations*

This study was approved by the Ethical Review Board, Umeå, Sweden (No. 2016/444-31). Written informed consent was obtained from the participants who were informed they were free to withdraw from the study at any time. There were no withdrawals. During the interview, some participants became emotional and even cried now and then. When this happened, they were asked if they wanted to take a break or stop the interview. No one wanted to stop the interview. A psychologist consultant was available if anyone needed it. The researchers had considered the additional burden that a mixed method study implies, i.e., that the participants were being asked to do both an interview and a survey and had taken steps to minimise that burden.
