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Biomedical subjects

K Schmader

Publications and source records attributed to K Schmader.

22 records · Page 2Linked to original sources
PubMed1992

Comparing proxy and patients' perceptions of patients' functional status: results from an outpatient geriatric clinic.

OBJECTIVE: To compare ratings of patients referred for geriatric evaluation and their proxies with respect to patients' ability to perform activities of daily living. DESIGN: Retrospective chart audit. SETTING: University-based Outpatient Geriatric Clinic. PATIENTS: Elderly medicine patients referred to a university-based outpatient geriatrics clinic for the first time. MAIN OUTCOME MEASURES: Modified Katz Physical Activities of Daily Living (PADL) and Instrumental Activities of Daily Living (IADL). RESULTS: With regard to PADLs, patients were generally rated as independent by both patients (91%) and proxies (87%); for IADLs, ratings of independence by both patients (68%) and proxies (51%) were significantly lower. Concordance between patient and proxy ratings was significantly (P less than 0.001) greater for PADLs (92%) than for IADLs (82%). When disagreement occurred, patients consistently rated themselves as more independent than their proxies, especially for IADLs. Moreover, concordance between patients and proxies regarding IADLs was significantly (P less than 0.001) worse for patients who had scores below 24 on the Folstein Mini-Mental State Examination (72%) compared with those scoring 24 or higher (95%). CONCLUSIONS: Patient and proxy ratings were concordant when rating patients' ability to perform PADLs. Moreover, concordance was extremely high on IADLs when patients' Folstein scores were 24 or higher. Concordance with respect to IADLs was relatively poor only among patients with Folstein scores below 24. In that case, patients had a more optimistic view of their independence, compared with their proxies.

Activities of Daily Living↗
PubMed1991

An evaluation of a brief health status measure in elderly veterans.

OBJECTIVE: To examine the feasibility of a brief 36-item health status measure in elderly male veterans, by comparing it with the 136-item Sickness Impact Profile. DESIGN: Cross-sectional study in which all subjects completed both measures in a random order. SETTING: Durham VAMC General Medicine and Geriatrics Clinics. PATIENTS: Convenience sample of 25 male veterans aged 65 and older (mean age = 73.5 years; 68% white; 68% currently married; mean annual income = $7,000). MAIN OUTCOME MEASURES: Two well-validated health status measures, the Sickness Impact Profile and the SF-36. RESULTS: The SF-36 took less time to administer than the Sickness Impact Profile in both the Geriatrics Clinic (mean: 15 vs 33 minutes) and General Medicine Clinic (mean: 14 vs 21 minutes). Although SIP scores consistently displayed a more optimistic picture of respondents' health compared with the SF-36, the two instruments were highly correlated: overall functioning (r = 0.73), physical functioning (r = 0.78), and social functioning (r = 0.67). CONCLUSIONS: These two measures provide a similar ranking of elderly male veterans' health status. The significantly shorter administration time of the SF-36 is an attractive feature for both researchers and clinicians interested in assessing health status.

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PubMed1990

Are stressful life events risk factors for herpes zoster?

To determine if psychologically stressful life events are risk factors for herpes zoster, we conducted a case-control study of zoster and self-reported recent negative life events and major changes in spousal relationships. The subjects were 101 healthy community-dwelling cases of zoster and 101 healthy controls matched for age, sex, and race and generated by random digit dialing. The Geriatric Scale of Recent Life Events was administered to case and control subjects, and additional questions were asked regarding the perception of the life event. The results showed that case subjects experienced negative life events significantly more often than subjects in the control groups in the 2 months before zoster onset by analysis of discordant pairs (26 versus 10, odds ratio 2.60, 95% confidence interval [CI] 1.13, 6.27, P = .012), 3 months before (29 versus 11, odds ratio 2.64, 95% CI 1.20, 6.04, P = .007), or 6 months before (35 versus 16, odds ratio 2.00, 95% CI 1.04, 3.93, P = .012). The mean number of total life events was significantly higher in cases at 6 months before zoster (case means = 2.64, control means = 1.82, P = .008), but there were no significant differences at 2, 3, or 12 months before. There were no significant differences between case subjects and control subjects for spousal events, or any given single life event. In conclusion, we found that whereas patients with herpes zoster experienced the same kinds of life events in the year preceding the illness as did control subjects, recent events perceived as stressful were significantly more common among patients with zoster.(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗