Table 2.
Enrolment sites, settings, place and type of measurements acquired
| Number of studies | |
|---|---|
| Enrolment site (n = 35 studies*) | |
| Through school | 19 |
| Clinic patients or their families | 5 |
| Through other research studies | 7 |
| Volunteers responding to advertisements in clinics, university, and on social media | 3 |
| Not stated | 1 |
| Setting during measurements (n = 34) | |
| Home and school and leisure | 25 |
| School only | 8 |
| Home only | 1 |
| Measurements indoors/outdoors (n = 34) | |
| Both indoor and outdoor **, *** | 20 |
| Indoor only | 5 |
| Prescribed time outdoors only | 5 |
| Daylight hours only **** | 4 |
| Parameters measured (n = 34) | |
| Light parameters only **, *** | 21 |
| Near-work parameters only | 2 |
| Both light and near-work | 4 |
| Prescribed time outdoors only | 4 |
| Daylight hours only **** | 3 |
*Enthoven 2021 used two enrolment strategies; **He et al. 2022 [16] and Wu et al. 2018 [17] prescribed time outdoors and reported light measurements. ***Torii et al. 2017 [18] reported UV transmittance of eyewear ****Leng et al. 2021 [19] and Ma et al. 2024 [20] reported average annual sunshine hours from meteorological data