*3.1. Baseline Characteristics*

Seventy-one children had a measurement of their height and weight in the three months prior to the start of the lockdown in the Netherlands (15 March 2020) and were included in the 2020 group, while 48 children were included in the control group (2019). (Figure 1) Baseline characteristics regarding weight status, family factors and length in the intervention were similar between the groups (Table 1).

**Figure 1.** Timeline and inclusion at the several measurement moments for the 2020 COVID-19 group and the 2019 control group.


**Table 1.** Baseline characteristics.
