Table 2 The rates of  vitamin D during pre-Covid-19-restriction measures period, Covid-19-restriction measures period and post-Covid-19-restriction measures period
From: Decreased vitamin D levels in the pediatric population after COVID-19 lockdown
Vitamin D categories, n (%) | 2019 (n = 201) | 2020 (n = 171) | 2021 (n = 119) | Total (n = 491) |
|---|---|---|---|---|
Deficiency (≤ 20 ng/mL) | 45 (22.5%) | 40 (23.4%) | 43 (36.1%) | 128 (26.1%) |
Insufficiency (20–29 ng/mL) | 76 (38.0%) | 74 (43.3%) | 43 (36.1%) | 193 (39.3%) |
Sufficiency (≥ 30 ng/mL) | 80 (39.5%) | 57 (33.3%) | 33 (27.8%) | 170 (34.6%) |