Search PubMed⌕ Search

Biomedical subjects

K Lahiri

Publications and source records attributed to K Lahiri.

At least 19 recordsLinked to original sources
PubMed1995

Modeling SSA's sequential disability determination process using matched SIPP data.

We model the Social Security Administration's (SSA's) disability determination process using household survey information exact matched to SSA administrative information on disability determinations. Survey information on health, activity limitations, demographic traits, and work are taken from the Survey of Income and Program Participation (SIPP). We estimate a multistage sequential logit model, reflecting the structure of the determination procedure used by State Disability Determination Services agencies. The findings suggest that the explanatory power of particular variables can be appropriately ascertained only if they are introduced at the relevant stage of the determination process. Hence, as might be expected by those familiar with the process, medical variables and activity limitations are major factors in the early stages of the process, while past work, age, and education play roles in later stages. The highly detailed administrative information on outcomes at each stage allows clarification of the roles of particular variables. Planned future work will include policy estimates, such as the number of persons in the general population eligible for the disability programs, as well as analysis of applications behavior in a household context.

Activities of Daily Living↗
PubMed1994

Socioeconomic factors and the odds of vaginal birth after cesarean delivery.

OBJECTIVE: To determine the independent effect of socioeconomic, organizational, and professional liability factors on the odds of vaginal birth after cesarean delivery (VBAC) while controlling for important clinical factors. DESIGN: A retrospective study of 1989 New York State vital statistics data, supplemented with additional information on county- and hospital-specific variables. Using multiple logistic regression analysis, odds ratios (ORs) and 95% confidence intervals (CIs) were derived for 15 independent variables. SETTING: Births occurring in 104 New York State hospitals. DATA SET: A total of 13,944 births occurring to New York State residents with a history of cesarean delivery of which 3068 (22%) were vaginal deliveries. RESULTS: The odds of VBAC increased with maternal education. The ORs were 1.15 (95% CI, 0.99 to 1.34) for 12 years of education; 1.36 (95% CI, 1.16 to 1.60) for 13 to 15 years; 1.59 (95% CI, 1.32 to 1.93) for 16 years, and 2.00 (95% CI, 1.64 to 2.45) for 17 years or more. The ORs also increased with the level of care provided by the hospital; they were 1.55 (95% CI, 1.34 to 1.81) and 1.30 (95% CI, 1.18 to 1.44) for hospitals with intensive and intermediate neonatal care facilities, respectively. The ORs were 1.15 (95% CI, 1.02 to 1.30) for health maintenance organization participants and 0.77 (95% CI, 0.63 to 0.94) for women giving birth in government hospitals. The ORs of VBAC for African-American and Hispanic mothers were 0.80 (95% CI, 0.70 to 0.93) and 0.61 (95% CI, 0.51 to 0.73), respectively. The ORs for a $5000 increase in physician's yearly malpractice premium and the hospital's paid loss due to malpractice claim settlements were 0.98 (95% CI, 0.97 to 0.99) and 1.01 (95% CI, 0.99 to 1.03), respectively. CONCLUSIONS: In addition to clinical factors, a mother's level of education and ethnicity and specific characteristics of the hospital in which she delivers affect the odds of a vaginal delivery after a previous cesarean delivery. From our analysis, we cannot conclude that professional liability factors affected VBAC rates.

Adult↗
PubMed1989

Enzyme-linked immuno-assay for the detection of mycobacterium tuberculosis specific IgG antibody in the cerebrospinal fluid in cases of tuberculous meningitis.

The efficacy of enzyme-linked immuno-assay in the detection of IgG antibody against mycobacterium tuberculosis in the cerebrospinal fluid of patients suffering from tuberculous meningitis was measured in 50 children consecutively admitted to hospital. The controls were 15 cases of tuberculosis other than of the central nervous system; 24 cases of pyogenic meningitis; 19 cases of neurologic problems but with essentially normal cerebrospinal fluid. The specificity of the test ranged from 93 to 100 per cent and the sensitivity from 82 to 95 per cent.

Antibodies, Bacterial↗
PubMedDate not supplied

Upper airway obstruction.

The airways in infants and children are anatomically different from adults, thus predisposing them to more acute upper airway obstruction. The causes of upper airway obstruction may be infective or non-infective. The presence of dysphonia, dysphagia, abnormal respiratory pattern, cough and abnormal posture suggests upper airway obstruction. The general management consist of supportive care with minimal invasive procedures. The specific treatment depends on the causes and is discussed in text.

Adolescent↗