Swine flu, at-risk groups in Italy

The New England Journal of Medicine has just published two papers about swine flu in USa, Australia and New Zealand. They discuss if specific groups of people were more involved and more likely to be hospitalized. The results say that people "with underlying medical conditions", were young, of minoritu groups have an increased risk.
There isn't any study in Italy yet, but according to the Minister of Health many deaths have occured in the Campania region. Actually, 23 out of 58 fatal cases of swine flu occured there. There's no explanation of this, maybe it's bad luck. Again, according to the official datas, almost all the people who died, 55 out of 58, were in the at-risk group. Nothing is said about foreign people. After a rough estimate of Ansa datas, it seems that 10% of all the deaths occured among them, a figure that fits in with the % of foreign population in Italy (6,5%).