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Background: To know the geographic distribution of the prevalence of psychological distress is important for mental health services planning. This study is aimed at identifying the individual factors and those related to the area of residence which may explain the geographic variability of psychological distress (by healthcare districts) in Catalonia., Methods: The data was taken from the 1994 Catalonian Health Survey and from the 1996 Catalonia population statistics. The prevalence of psychological distress is estimated by age and sex and by healthcare district. In a two-level logic regression model, a study is made of the relationship between the individual variables (first level: health survey n = 12,455) and those of the area of residence (second level: the healthcare district, n = 46) to the geographic distribution of the prevalence of psychological distress., Results: The significant variables at individual level are in men: age (45-64 years OR: 0.63 y > 64 years OR: 0.22), working status (no work OR: 1.60), number of chronic diseases (CD) (CD = 1 OR: 1.75 CD = 2 OR: 2.06 CD = 3-5 OR: 3.36 and CD > 5 OR: 8.9). In women: age (25-44 years OR: 0.63 45-64 years OR: 0.45 and > 64 years OR: 0.32), working status (no work OR: 1.30), number of chronic diseases (CD = 1 OR: 1.75 CD = 2 OR: 2.44 CD = 3-5 OR: 4.09 and CD > 5 OR: 11.14), and also the kind of parental household in women (single-parental OR: 1.42). The variables at the level of the area of residence are in migration (men OR: 1.55 and women OR: 1.68) and unemployment (men OR: 1.07 and women OR: 1.06)., Conclusions: The individual factors do not suffice to explain the geographical variability of the prevalence of psychological distress, but the characteristics of the area of residence are also important.

The first X-ray structure of an isatin (2,3-indolinedione, isaH) metal complex, bis(isatinato)memury(II) (C(16)H(8)N(2)O(4)Hg) (1), was determined. (1) was obtained from the reaction of isaH with mercury(II) acetate in methanol. Analogously, treatment of sodium saccharinate and mercury(II) acetate in methanol yielded Hg(saccharinato)(2) (*)0.5CH(3)OH (3). (1) crystallizes in the monoclinic system, space group P2(1)/ a with a = 7.299(1) A, b = 8.192(1) A, c = 11.601(1) A , beta = 105.82(1) degrees , V = 667.4 A(3), Z = 2, D(calc) = 2.452 g cm(-3), MoKalpha radiation(lambda = 0.71073 A), mu = 115.5 cm(-1), F(000) = 460, 21(1) degrees C. The structure was refined on the basis of 2023 observed reflections to R= 0.044. The two deprotonated, non coplanar isa ligands are trans to each other in a head to tail orientation and bound to the Hg through the nitrogen in a linear N-Hg-N arrangement. The Hg atom is at the center of symmetry of the complex and displaced by 0.62 A from the two planes of the isa ligands (tau Hg-N1-C2-O2= -16 degrees ). The Hg-N bond length is 2.015 A. Nopi-aryl-memury(ll)-pi-aryl stacking interaction was observed either in the solid state or in the solution state. The IR, electronic, and (1)H and (13)CNMR spectral data of (1) and (3) suggest binding of the memury to the heterocyclic nitrogen, in agreement with the crystal structure determination of (1).