Izvorni znanstveni članak
Influence of the Incoming Solar Radiation on the Bone Mineral Density in the Female Adult Population in Croatia
Berislav Rožman
Zvjezdana Bencetić Klaić
Franjo Škreb
Sažetak
The relationship between the bone mineral density (BMD) in Croatian female adults
and the average incoming solar radiation at the ground was investigated. The study included
387 volunteers of average age of 60 years from three different towns: Pula (n=
128, age from 35 to 76), Krapina (n=141, age from 43 to 77), and Zagreb (n=118, age
from 32 to 79). Apart from the different lifestyle, each of above towns is characterized by
different incoming solar radiation, where values of 503.3 kJ cm–2, 471.2 kJ cm–2 and
436.3 kJ cm–2 correspond to average annual radiation at the ground for Pula, Krapina
and Zagreb, respectively. Heel BMD was measured by clinical bone sonometer (Sahara).
On the average the BMD was highest for Pula (0.469 g cm–2) and the lowest for Zagreb
(0.433 g cm–2). Similarly, the percentage of normal bones was the highest for Pula (46.1%)
and the lowest for Zagreb (32.2%). Osteopenic bones were the most frequent for Zagreb
(61.0%), while corresponding figures for Pula and Krapina were 46.9% and 43.6%, respectively.
Osteoporosis varied from 6.8% in Zagreb to 11.4% in Krapina. A test of independence
by contingency table confirmed at the significance level =0.05 that probability
of normal bone occurrence increases with the increase of incoming solar radiation.
Results of the multiple regression analysis suggest the dependence of BMD on woman’s
age and weight, and incoming solar radiation at the place of habitation.
Ključne riječi
epidemiology; solar radiation; bone mineral density; BMD; Croatia
Hrčak ID:
28097
URI
Datum izdavanja:
16.6.2003.
Posjeta: 840 *