Data analysis

Data analysis

The scope of this report is cases pertaining to the period 1 January 2015 through to 31 December 2020 with a census date of 1 July 2021. Data were analysed using SPSS Version 271. Statistical tests are introduced in the context within which they were applied. Categorical variables are expressed as counts and/or proportions. Continuous variables are expressed as means (+/- standard deviation) or medians (with 25th and 75th percentile) depending on the normality of the distribution. Statistical significance was assumed at p ≤ 0.05 (ns = non-significant). Analyses have been conducted using all available valid data points.