Vitamin D and Health

Table 2: Observational studies on rickets
Study/year/country Population Rickets diagnosis Mean 25(OH)D (nmol/L) & Ca (mg/L)
concentrations
Calcium intakes/other
comments
Dunnigan et al (1981)
Glasgow, UK
Ladhani et al (2004)
London, UK
South Asian children (n=189) aged 5-17 y in
single GP practice.
Ethnicity: South Asian
Grouped according to vitamin D supplement
use:
Regular: at least 2x week,
Intermittent: less frequently
None
Retrospective review of case records of
children (n=65; 0-13y) diagnosed with
hypocalcaemia or vitamin D deficiency rickets
(1996-2001).
39 Asian, 24 Afro-Carribean, 2 Eastern
European.
Radiological signs of rickets
Regular: 3 (5%)
Intermittent: 8 (15%)
None: 11 (14%)
No. diagnosed with rickets (serum Ca