A simple modified absorption potential.
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Absorption↗
Biomedical subjects
T Sanghvi
Publications and source records attributed to T Sanghvi.
Estimation of the effect of NaCl on the solubility of organic compounds in aqueous solutions.
The Setschenow constant, K(salt), of a nonelectrolyte in a NaCl solution is shown to be related to the logarithm of its octanol-water partition coefficient, log K(ow), determined by K(salt) = A log K(ow) + B, where K(ow) is the octanol-water partition coefficient of the solute and the coefficients A and B are constants. The values of A and B were empirically determined from literature data for 62 organic compounds and validated for a test set of 15 compounds including several drugs.
Chemical Phenomena↗
Improving preconception care.
OBJECTIVE: To improve the documentation and delivery of preconception care to all women of reproductive age attending an inner city hospital's outpatient gynecology clinic. A secondary goal was to evaluate the knowledge and awareness of providers regarding preconception care. STUDY DESIGN: A preintervention chart review of a convenience sample of non-pregnant women with reproductive potential who attend an inner city hospital gynecology clinic (n = 100) was conducted to evaluate delivery of preconception care. Items screened for included: family planning services, domestic violence, nutrition and medical risk factors, medication use, appropriate counseling and use of referral services. All providers in the clinic were surveyed to assess their knowledge of and attitudes toward preconception care. A two-part intervention was then carried out: (1) a one-hour lecture for all providers, and (2) a standardized preconception care form inserted in all charts. A postintervention chart review of a second convenience sample (n = 100) and repeat provider survey were then conducted to evaluate the effectiveness of the two interventions. RESULTS: Following the two-pronged intervention, there was evidence of improved documentation of the delivery of preconception care. Documentation of screening in almost all categories was significantly improved (P < .05). The greatest improvements were noted in complete screening for medical risk factors (from 15% to 44%), for over-the-counter and prescription medication use (from 10% to 70% and 30% to 77%, respectively), domestic violence (from 10% to 57%) and nutrition (from 9% to 50%). However, provider knowledge of and attitudes toward preconception care were not significantly changed. CONCLUSION: The combination of education about preconception care and insertion of a standardized form into a patient's chart led to a clear improvement in the documentation of preconception care. Given the significance of preconception care, insertion of a standardized form should be considered to help providers complete and appropriate care to their patients.
Adult↗
The effectiveness of a hospital-based program to promote exclusive breast-feeding among low-income women in Brazil.
OBJECTIVES: This study examined the effectiveness of a hospital program to promote exclusive breast-feeding in Santos, Brazil. METHODS: In a prospective design, women who delivered at a hospital with an active breast-feeding promotion program (n = 236) were compared with women who delivered at a nearby control hospital (n = 206). RESULTS: The two groups had similar demographic characteristics and previous breast-feeding histories. Exposure to breast-feeding activities, assessed by maternal recall prior to discharge, was universally high at the program hospital and universally low at the control hospital. Multivariate survival analysis showed that exclusive breast-feeding lasted 53 days longer among women who delivered at the program hospital. CONCLUSIONS: Hospital-based breast-feeding promotion programs may be effective in extending the duration of exclusive breast-feeding.
Adult↗
The costs and effectiveness of three vitamin A interventions in Guatemala.
The purpose of the study presented in this paper was to estimate, using secondary sources of data, the cost and effectiveness of three programs to combat vitamin A deficiency in Guatemala-the national sugar fortification program, a targeted capsules distribution program and the promotion of home food production combined with nutrition education and to draw conclusions concerning priorities for Guatemala. Data on the costs and coverage were collected from implementing agencies in Guatemala. Coverage data were converted into a common set of impact indicators. Sensitivity analyses were conducted on variables whose precise value was uncertain. Potential impacts of improvements in program performance operations were also explored. The analysis found the cost per high-risk person achieving adequate vitamin A to be US $0.98 for fortification, US $1.68-1.86 for capsule distribution and US $3.10-4.16 for food production/education. Fortification is the most efficient option if vitamin A levels in sugar are maintained at reasonable levels. Where fortified sugar is not consumed and vitamin A deficiency is highly prevalent, small-scale, targeted, complementary interventions such as capsules and food production education may be appropriate for sustained broader impacts.
Cost-Benefit Analysis↗
Breastfeeding promotion and priority setting in health.
An increase in exclusive breastfeeding prevalence can substantially reduce mortality and morbidity among infants. In this paper, estimates of the costs and impacts of three breastfeeding promotion programmes, implemented through maternity services in Brazil, Honduras and Mexico, are used to develop cost-effectiveness measures and these are compared with other health interventions. The results show that breastfeeding promotion can be one of the most cost-effective health interventions for preventing cases of diarrhoea, preventing deaths from diarrhoea, and gaining disability-adjusted life years (DALYs). The benefits are substantial over a broad range of programme types. Programmes starting with the removal of formula and medications during delivery are likely to derive a high level of impact per unit of net incremental cost. Cost-effectiveness is lower (but still attractive relative to other interventions) if hospitals already have rooming-in and no bottle-feeds; and the cost-effectiveness improves as programmes become well-established. At an annual cost of about 30 to 40 US cents per birth, programmes starting with formula feeding in nurseries and maternity wards can reduce diarrhoea cases for approximately $0.65 to $1.10 per case prevented, diarrhoea deaths for $100 to $200 per death averted, and reduce the burden of disease for approximately $2 to $4 per DALY. Maternity services that have already eliminated formula can, by investing from $2 to $3 per birth, prevent diarrhoea cases and deaths for $3.50 to $6.75 per case, and $550 to $800 per death respectively, with DALYs gained at $12 to $19 each.
Adult↗
Exclusive breast-feeding duration is associated with attitudinal, socioeconomic and biocultural determinants in three Latin American countries.
International health organizations have recommended exclusive breast-feeding (EBF) (i.e., breast milk as the only source of food) as the optimal infant feeding method during the first 4-6 mo of life. Therefore, it is important to document the determinants of EBF in different populations. Low-income urban women from Brazil (n = 446, 2 maternity wards), Honduras (n = 1582, 3 maternity wards) and Mexico (n = 765, 3 maternity wards) were interviewed at birth and in their homes at 1 mo and 2-4 mo after delivery. Multivariate survival analyses (Cox model) indicated that planned duration of EBF (all 3 countries), having a female infant, and not being employed (Brazil and Honduras), lower socioeconomic status (Honduras and Mexico) and higher birth weight (control hospital in Brazil and Honduras) were positively associated (P < or = 0.10) with EBF. Women who delivered in the maternity wards that had more developed breast-feeding promotion programs were more successful with EBF. The association between maternal education and EBF was modified by the maternity ward in Mexico and Honduras. Being > or = 18 y and having a partner living (Brazil) or not (Mexico) living at home were positively associated with EBF. These findings can contribute toward the design of EBF promotion efforts in Latin America.
Adult↗