3,3′-Dibromo-1,1′-[ethyl­enedioxy­bis(nitrilo­methyl­idyne)]dibenzene

In the centrosymmetric title compound, C16H14Br2N2O2, the intra­molecular interplanar distance between the parallel benzene rings is 1.305 (3) Å, while the inter­molecular interplanar distance (between neighbouring mol­ecules) is 3.463 (3) Å, exhibiting obvious strong inter­molecular π–π stacking inter­actions

3,5-Dinitro­benzoyl chloride

The carbonyl chloride group in the title compound, C7H3ClN2O5, is disordered over two orientations with occupancies of 0.505 (5) and 0.495 (5). The mol­ecule is approximately planar, the dihedral angle between the carbonyl chloride plane and benzene ring being 9.6 (4)° in the major disorder component and 7.1 (4)° in the minor component. The nitro group at the 5-position is twisted, forming a dihedral angle of 6.7 (4)°. The crystal packing is stabilized by C—H⋯O hydrogen bonds

Expanded CURB-65: A new score system predicts severity of community-acquired pneumonia with superior efficiency

Aim of this study was to develop a new simpler and more effective severity score for communityacquired pneumonia (CAP) patients. A total of 1640 consecutive hospitalized CAP patients in Second Affiliated Hospital of Zhejiang University were included. The effectiveness of different pneumonia severity scores to predict mortality was compared, and the performance of the new score was validated on an external cohort of 1164 patients with pneumonia admitted to a teaching hospital in Italy. Using age≥ 65 years, LDH>230u/L, albumin<3.5g/dL, platelet count<100×109/L, confusion, urea>7mmol/L, respiratory rate≥30/min, low blood pressure, we assembled a new severity score named as expanded-CURB-65. The 30-day mortality and length of stay were increased along with increased risk score. The AUCs in the prediction of 30-day mortality in the main cohort were 0.826 (95%CI, 0.807–0.844), 0.801 (95%CI, 0.781–0.820), 0.756 (95%CI, 0.735–0.777), 0.793 (95%CI, 0.773–0.813) and 0.759 (95%CI, 0.737–0.779) for the expanded-CURB-65, PSI, CURB-65, SMART-COP and A-DROP, respectively. The performance of this bedside score was confirmed in CAP patients of the validation cohort although calibration was not successful in patients with health care-associated pneumonia (HCAP). The expanded CURB-65 is objective, simpler and more accurate scoring system for evaluation of CAP severity, and the predictive efficiency was better than other score systems

Dimethyl 2-nitro­terephthalate

In the mol­ecule of the title compound, C10H9NO6, the two ester groups and the nitro group are inclined at 9.2 (2), 123.3 (6) and 135.2 (5)°, respectively to the mean plane of the benzene ring. In the crystal structure, mol­ecules are stacked along the a axis, without any π–π inter­actions. The stacked columns are linked together by non-classical intermolecular interactions of the type C—H⋯O

Ethyl 3-carb­oxy-5-nitro­benzoate

In the title compound, C10H9NO6, the carb­oxy, ethoxy­carbonyl and nitro groups form dihedral angles of 3.8 (1), 4.5 (1) and 164.8 (1)°, respectively, with the mean plane of the benzene ring. In the crystal structure, mol­ecules lying about inversion centers are linked through O—H⋯O hydrogen bonds. C—H⋯O inter­actions are also present

Isobutyl 3,5-dinitro­benzoate

In the structure of the title compound, C11H12N2O6, the mol­ecules are stacked along the b axis without any π–π inter­actions. The stacked columns are linked together by non-classical inter­molecular C—H⋯O inter­actions,. In the molecule, the nitro groups make dihedral angles of 9.4 (5) and 10.3 (5)° with the benzene ring

Methyl 3-carboxy-5-nitrobenzoate

The structure of the title compound, C9H7NO6, is essentially planar [maximum deviation 0.284 (2)Å] except for the methyl H atoms. The crystal structure is stabilized by asymmetric O—H⋯O hydrogen bonds linking the hydrogen carboxyl­ates into pairs around the inversion centres. There is also π–π stacking of the benzene rings [centroid–centroid distance 3.6912 (12) Å]

Dimethyl 5-amino-2,4,6-triiodo­isophthalate

The title compound, C10H8I3NO4, crystallizes with two mol­ecules in the asymmetric unit. The I atoms and the benzene ring plane in the two mol­ecules are approximately coplanar, the I atoms deviating by −0.1631 (1), 0.0704 (1) and −0.0507 (1) Å from the mean plane of the benzene ring in one mol­ecule and by 0.1500 (1), −0.0034 (1) and −0.1213 (1) Å in the other. The planes of the ester groups are almost orthogonal to those of the benzene rings in both mol­ecules, forming dihedral angles of 83.5 (3), 76.4 (3), 97.3 (1) and 75.7 (1)°. The mean planes of the benzene rings in two mol­ecules are inclined at 69.8 (3)° with respect to each other. In the crystal, inter­molecular I⋯O inter­actions link the mol­ecules into infinite chains. In addition, N—H⋯O and non-classical C—H⋯O hydrogen bonds are observed

3,3′-Dibromo-1,1′-[(propane-1,3-diyl­dioxy)­bis(nitrilo­methyl­idyne)]dibenzene

The mol­ecule of the title compound, C17H16Br2N2O2, lies on a twofold axis that passes through the middle atom of the three-atom trimethyl­ene unit. The two aromatic rings are aligned at an angle of 76.02 (4)°

An investigation of the health value and self-care capabilities of the elderly in urban-rural fringe area nursing homes and the related influencing factors

AbstractObjectiveTo investigate the health value and self-care capabilities of the elderly living in urban-rural fringe area nursing homes and the factors that influence these variables.MethodsA cluster sampling method was used to select 280 elderly individuals from seven urban-rural fringe communities in Xianning to complete a survey regarding their health value and self-care capabilities.ResultsThe total health value and self-care capability scores of the elderly were 7.45 ± 1.45 and 100.25 ± 22.56, respectively. Both of these scores significantly differed by age, education level, marital status, and income (P < 0.05, P < 0.01). Self-care capability was correlated with health value (r = 0.521). A multivariate linear regression analysis showed that health value, marital status, and age predicted self-care capability.ConclusionsElderly people living in the urban-rural fringe area with higher health values also had higher self-care capabilities. The self-care capabilities of the elderly can be enhanced by improving their health value using the “knowing-trusting-acting” model