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Comparison of television and telephone for remote medical consultation.

Television and telephone communications were randomly used to compare their effectiveness in allowing consultation between a hospital-based physician and remote nurse practitioners. Visits using television for consultation averaged 50 minutes as compared with 40 minutes for telephone. This difference was caused by longer work-ups before the consultation, longer delays after it was requested, and longer consultations, themselves, on television. However, television consultations resulted in significantly fewer immediate referrals of patients to hospital physicians: 6 plus or minus 1 as compared to 12 plus or minus 1 per cent (mean plus or minus S.E.M) OF ALL TELEPHONE CONSULTATIONS (P SMALLER THAN 0.005). Although no overall difference in satisfaction was documented between the results of television and telephone consultations, participants preferred the former for medical decision making and cited it for allowing more social interaction than telephone. These findings suggest that television may have its greatest value in remote sites where the sense of isolation is great and the need to reduce long-distance referrals offsets the costs of the system.

Community Health Services↗

Remote capture of human voice acoustical data by telephone: a methods study.

In this pilot study we sought to determine the reliability and validity of collecting speech and voice acoustical data via telephone transmission for possible future use in large clinical trials. Simultaneous recordings of each participant's speech and voice were made at the point of participation, the local recording (LR), and over a telephone line using a dedicated in-line computerized interactive voice recording system, the remote recording (RR). All voice recordings were made from our laboratory telephone located in Groton, Connecticut to the RR system located in Madison, Wisconsin. All data points were compared on a measure-by-measure basis between the LR and RR recordings. The results suggest that both measures of frequency excursion and of speech motor timing are reliably captured over the telephone. Results are discussed in terms of specific acoustic measures that may be useful and accurately measured via telephone transmission, for examining disease severity and pharmacological intervention for use in a large-scale clinical trial.

Adult↗

Offering telephone counseling to smokers using pharmacotherapy.

Whereas telephone-based counseling has been found to be effective in supporting smokers interested in quitting smoking, it is not known whether proactive efforts to reach smokers receiving cessation medications will enhance their likelihood of successful quitting. We had an opportunity to test, in a health plan setting, an offer of telephone-based counseling with smokers identified from health plan records as recently filling a prescription for nicotine replacement therapy or bupropion. After we removed 31 members determined to be ineligible, 1,329 were randomly allocated to receive an invitation either to telephone-based counseling (n = 663) or to a control group (n = 666). On average, 7 days (range = 3-15 days) elapsed from the day of the prescription fill until the Center for Health Promotion began calling to invite members to participate in telephone counseling. The Center for Health Promotion was able to reach 49% of those in the intervention group (323/663). Of these members, 118 (37%) declined any participation. Therefore, in response to the proactive contact, 63% (205/323) of those reached and 31% (205/663) of those eligible participated in some smoking cessation counseling. At the 3-month follow-up, we observed an increased quit rate (33.1% vs. 27.4%) among health plan members randomized to telephone-based smoking cessation counseling. The results varied by gender and amount smoked. In addition, the variables associated with quitting in a multivariate logistic regression model included older age and using more than 30 days of medication.

Adult↗

Telephone medical care of patients with HIV/AIDS.

It has been reported that primary care physicians make 27% of their patient contacts by telephone. With the knowledge that more than 90% of the population has access to a telephone, it is reasonable to propose that the telephone might be employed in a more structured and organized manner for improved, cost-effective medical care. In the current study, two diverse practices (multiphysician and university-affiliated HIV/AIDS clinic, private practice specializing in HIV/AIDS care), both of which used the telephone as having a central role in patient management, were critically observed and reported through three case reports. The results indicate that personnel other than the primary physician provider, such as the triage nurse, may handle a large percentage of calls and successfully manage numerous psychologic and health care issues for the patient, referring, when necessary, appropriate medical inquiries to the physician. It is recommended that physicians take the time to construct sound protocols for clinic personnel to manage patient inquiries by telephone.

Acquired Immunodeficiency Syndrome↗

Validity of telephoned diet recalls and records for assessment of individual food intake.

Six methods of assessing individual food intake reported by telephone were compared for accuracy. A sample of 107 students eating in a dormitory dining hall was used. Two 7-day and four 3-day diet records were reported by telephone to either an interviewer or an answering device; and fourteen 6-h recalls and seven 24-h recalls were obtained by an interviewer over the telephone. To examine validity, the investigators observed respondents' intake for 28 days. Food item agreement scores comparing observed and reported data were calculated. Seven-day records were most accurate (87% food item agreement); 3-day records and 6-h recalls were equivalent (75%); and 24-h recalls were least accurate (69%). There were no significant difference in accuracy of reporting records to an interviewer versus a recording device, but respondents preferred the interviewer. Results of telephoned reporting compare favorably with personal interview techniques used by other investigators, indicating that telephoned methods should be further explored in community settings.

Adolescent↗

Comparability of skin screening histories obtained by telephone interviews and mailed questionnaires: a randomized crossover study.

The comparability of information collected through telephone interviews and information collected through mailed questionnaires has not been well studied. As part of the first phase of a randomized controlled trial of population screening for melanoma in Queensland, Australia, the authors compared histories of skin examination reported in telephone interviews and self-administered mailed questionnaires. A total of 1,270 subjects each completed a telephone interview and a mailed questionnaire 1 month apart in 1999; 564 subjects received the interview first, and 706 received the mailed questionnaire first. Agreement between the two methods was 91.2% and 88.6% for whole-body skin examination by a physician in the last 12 months and the last 3 years, respectively, and 81.9% for whole-body skin self-examination in the last 12 months. Agreement was lower for "any" skin self-examination. Agreement between the two methods was similar regardless of whether the interview or the questionnaire was administered first. Missing data were less frequent for interviews (0.5%) than for mailed questionnaires (3.8%). Costs were estimated at A$9.55 (US$6.21) per completed interview and A$3.01 (US$1.96) per questionnaire. The similarity of results obtained using telephone interviews and mailed questionnaires, coupled with the substantially higher cost of telephone interviews, suggests that self-administered mailed questionnaires are an appropriate method of assessing this health behavior.

Adult↗

You've got a lot to answer for, Mr Bell. A review of the use of the telephone in primary care.

This paper reviews the role of the telephone in delivering primary health care. It highlights the wide differences between the UK and other countries, notably the USA, in knowledge of and experience with telephone care. The volume and nature of telephone contacts in family medicine are explored before focusing on calls which may be described as consultations, both in and out of office hours. Aspects of telephone consultations examined include the quality of care, the effectiveness of training programmes and the role of other health professionals. Important gaps in the literature are identified, including the lack of comparisons between telephone and face-to-face care in terms of the quality of process and outcomes and the lack of data on costs and benefits.

Counseling↗

Assessing research outcomes by postal questionnaire with telephone follow-up. TOTAL Study Group. Trial of Occupational Therapy and Leisure.

BACKGROUND: Face-to-face assessment of research outcomes is expensive and may introduce bias. Postal questionnaires offer a cheaper alternative which avoids observer bias, but non-response and incomplete response reduce the effective sample size and may be equally serious sources of bias. This study examines the extent and potential effects of missing data in the postal collection of outcomes for a large rehabilitation trial. METHODS: Questionnaires containing a number of established scales were posted to participants in a trial of occupational therapy after stroke. Response was maximized by telephone and postal reminders, and incomplete questionnaires were followed up by telephone. Scale scores obtained by imputing values to questionnaire items missing on return were compared with those achieved by telephone follow-up. FINDINGS: Response to the initial posting was 60%, rising to 85% after reminders. Participants receiving the experimental treatment were more likely to respond without a reminder. There were no significant differences on any known factors between eventual responders and non-responders. Of the questionnaires, 43% were incomplete on return: partial responders were significantly different to complete responders on baseline disability and home circumstances. Of the incomplete questionnaires, 71% were resolved by telephone follow-up. In these, the scale scores achieved by telephone were generally higher than those derived by conventional imputation. CONCLUSION: Postal outcome assessment achieved a good response rate, but considerable effort was needed to minimize non-response and incomplete response, both of which could have been serious sources of bias.

Bias↗

Nonresponse bias and early versus all responders in mail and telephone surveys.

Mail and telephone survey methods, with or without follow-up by other methods, are cost-effective alternatives to the conventional home interview approach. However, it has long been thought that they are especially susceptible to nonresponse bias. The study addressed this issue in the context of parallel mail and telephone health surveys carried out in Montreal. The mail strategy among 1,555 adults achieved 68.5% response and follow-up by telephone and home interview increased response to 80.9%. Respondents were adequately representative of the entire sample with respect to socioeconomic status, number of adults in household, and ethnic distribution. The 68.5% initial stage respondents were similar to all respondents on the above variables as well as on age, sex, education and reported health status. Odds ratios of smoking and respiratory symptoms hardly differed between initial stage and all respondents. The telephone survey among 1,595 adults achieved 72.7% response and follow-up by mail and personal interview increased response to 88.2%. Comparisons between respondents and the entire sample and between initial stage respondents and all respondents gave similar results to those found in the mail strategy, although there was some change in a symptom-smoking odds ratio from the initial stage respondents to all respondents. In both survey strategies, there was no evidence of substantial nonresponse bias and estimates of morbidity and health care would not have differed much if the fieldwork had stopped at the initial mail or telephone stage.

Adolescent↗

Effectiveness of the Waksberg telephone sampling method for the selection of population controls.

The effectiveness of the Waksberg telephone sampling method and practical aspects of its implementation were evaluated during the selection of control subjects for a population-based case-control study conducted in Maryland, Virginia, West Virginia, and Washington, DC, in 1991. The first stage of the two-stage sampling procedure was equivalent to simple random sampling. Each telephone number selected was dialed up to 13 times to establish the type of connection. Residential connections were used to generate additional telephone numbers in the second stage by changing the last two digits. Overall, 3,860 telephone numbers yielded 1,311 residences. The proportion of residences was higher in the second stage (54%) than in the first (11%), while that of numbers "not in service" was lower (12% vs. 67%, respectively). Fewer calls (8,735) were made than would have been required by a simple random sampling procedure (up to 18,522). The geographic distribution of residences was similar at both stages of sampling. At the end of enrollment, each sampling unit had yielded 9.8 residences, but only 64% reached 9-11 residences. Compliance rates were 96% for screening (1,259 of 1,311 residences), 90% for interviewing (362 of 403), and 86% overall. Relative to simple random sampling, the Waksberg method considerably reduced the total number of telephone calls, but the sampling process was more complex to manage. This method is particularly suitable for selecting population controls when the density of residential connections is low and variables of interest are not homogeneous within sampling units. Random digit dialing remains an effective method for selecting population controls.

Data Collection↗

Telephone listening ability in a noisy background.

Telephone handsets have a built-in side-tone feedback because the transmitter feeds back sound through the receiver, allowing users to monitor their voice levels. However, the side-tone feedback system also picks up background noise which interferes with the incoming speech signal. This study investigated the influence of side-tone feedback on the telephone listening ability of 30 normal-hearing subjects in a background of multitalker (MT) and white noise (WN) presented at 65, 75, and 85 dB SPL in two conditions where the side-tone feedback was present and in three conditions where the side-tone was eliminated. Telephone listening ability significantly decreased as the level of the noise increased for both MT and WN and for all listening conditions. Telephone listening ability was significantly poorer in the background of MT than WN for each noise level and listening condition. The primary finding was that telephone listening ability in a background of MT or WN at the higher levels was significantly improved when the side-tone feedback was eliminated by electronically disengaging or more simply by occluding the transmitter with the palm of the hand.

Adult↗

Telephone nursing interventions in ambulatory care.

Telephone nursing practice is becoming a major nursing activity in ambulatory care settings, yet little is known about the type and extent of nursing interventions that occur during telephone interactions. A pilot study was conducted in two sites to see whether nursing diagnoses and interventions could be captured and related to nursing care during telephone consultation. This initial pilot demonstrated that nurses have an appropriate role in telephone interactions and that standardized nursing language can be used in telephone nursing to document nursing care despite the many challenges in its use in the field.

Ambulatory Care↗

Comparing telephone and mail responses to the CAHPS survey instrument. Consumer Assessment of Health Plans Study.

OBJECTIVES: The Consumer Assessment of Health Plans (CAHPS) survey is designed to collect member experiences with getting medical care. The objective was to evaluate the comparability of answers to CAHPS questions when data are collected by mail and by telephone interview. METHODS: Two studies comparing phone and mail responses used a pretest instrument with parallel samples drawn from Medicaid beneficiaries in California (n = 217 telephone, 97 mail) and adults with chronic conditions who had health insurance through the State of Washington (n = 98 telephone, 109 mail). A third study used a revised instrument with two parallel cross-section samples of adults covered through the State of Washington (n = 446 telephone, 609 mail). Questions covered respondents' experiences with getting medical care through their health plans. RESULTS: In the first two tests, numerous significant differences were found in the rates at which questions that potentially did not apply to all respondents were answered: some ratings were more positive on the telephone. In the test of a revised instrument, nine of 58 comparisons differed significantly by mode. The systematic differences in response to questions that did not apply to all respondents were greatly reduced. Only one of four ratings and one of seven multi-item composite measures of quality of care were significantly different by mode. CONCLUSION: Although further steps to reduce the remaining mode effects are needed, the data indicate that when the revised CAHPS questions are used, mode of data collection will have little effect on the key results.

Adult↗

Using telephone interviews to reduce nonresponse bias to mail surveys of health plan members.

OBJECTIVE: To assess the nonresponse bias associated with mail-survey returns and the potential for telephone interviews with nonrespondents to reduce that bias. METHODS: A mail survey about health care experiences was conducted with samples of 800 members in each of four health plans. Subsequent attempts were made to interview nonrespondents by telephone. RESULTS: Response rates for the mail surveys averaged 46%; the telephone effort raised the average to 66%. On 17 of 19 measures of health status or need and use of health services, mail respondents were in poorer health and needed more services than interviewed nonrespondents. Thirteen of 36 reports and ratings of health care also differed significantly between the two groups. Based on administrative data, telephone interviews of mail nonrespondents improved the demographic representativeness of the responding samples. Adjusting mail returns to sample population characteristics could not replicate the dual-mode results. CONCLUSIONS: Returns to mail surveys are likely to be related to survey content and hence are potentially biased. Nonresponse to phone surveys is less directly related to survey content. Telephone interviews with mail nonrespondents not only increase response rates but also can produce less biased samples than mail-only protocols.

Adult↗

Early labor assessment and support at home versus telephone triage: a randomized controlled trial.

OBJECTIVE: To compare rates of cesarean delivery among women who were triaged by obstetric nurses, either by telephone or by means of home visits. METHODS: Healthy, nulliparous women in labor at term with uncomplicated pregnancies residing in the City of Vancouver, British Columbia, and suburbs between November 2001 and October 2004 were randomized when they sought advice about when to come to hospital. Women randomized to telephone triage (n=731) were provided with advice by telephone. Women randomized to a home visit (n=728) were triaged after a "hands-on" assessment in their homes. RESULTS: The relative risk (RR) for cesarean delivery among home-triaged women compared with those receiving only telephone support was 1.12 (95% confidence interval [CI] 0.94-1.32). The study was designed to have 80% power to detect a RR less than 0.78 or greater than 1.27 for cesarean delivery. Significantly fewer women in the home visit group were admitted to hospital with cervical dilatation at 3 cm or less (RR 0.85, 95% CI 0.76-0.94). Significantly more women in the home visit group managed their labor without a visit to hospital for assessment (RR 1.54, 95% CI 1.23-1.92). There were no statistically significant differences in use of narcotic analgesia, epidural analgesia, and augmentation of labor. Adverse neonatal outcomes were rare and did not differ between study groups. CONCLUSION: Early labor assessment and support at home versus support by telephone reduces the number of visits to hospital in latent phase labor but does not impact cesarean delivery rates among healthy nulliparous women. CLINICAL TRIAL REGISTRATION: ISRCTN, www.controlled-trials.com/isrctn, MCT-44153 LEVEL OF EVIDENCE: I.

Adult↗

Alternative modes for health surveillance surveys: an experiment with web, mail, and telephone.

BACKGROUND: Web and mail surveys as complements to telephone surveys may help resolve concerns about declining participation in telephone surveys for public health surveillance. Little is known, however, about how responses obtained in Web surveys compare with those from mail or telephone surveys. METHODS: The Behavioral Risk Factor Surveillance System 2003 core interview was conducted in 3 survey modes: Web (n = 1143), mail (n = 836), and telephone (n = 2072). All 3 samples were drawn randomly. We compared respondent demographics and responses to 8 key questions on health conditions and risk behaviors (including asthma, diabetes, obesity, and HIV testing) across the 3 survey modes. RESULTS: Demographic characteristics of mail and Web respondents varied considerably from those interviewed by telephone. The unadjusted prevalence of outcomes varied by survey mode. After adjustment for respondent demographic characteristics, there were still differences among survey modes in several of the health conditions and risk behaviors, although for some of these, the pattern was different for the unadjusted and adjusted results. CONCLUSIONS: As health surveys take advantage of new technologies and moved towards mixed-mode designs, researchers need to test for and, if necessary, account for the effect of mode in the estimates they produce.

Health Surveys↗

Nursing documentation of telephone communication with physicians in community nursing homes.

OBJECTIVE: The objective of this study was to describe the nursing documentation of telephone communication with physicians in community nursing homes. DESIGN: We conducted a prospective observational study evaluating nursing documentation of all telephone calls to one physician group. SETTING: We studied two proprietary community nursing homes in Baltimore, Maryland. MEASUREMENTS: Data were collected by physicians at the time of each call regarding the time, day, nursing facility, reason for the call, and any orders given. Calls were also categorized as to whether documentation was necessary by defined criteria. The nursing home charts were then reviewed for the presence of documentation of 1) the issue that prompted the call, 2) physician's participation in the matter, and 3) any orders given by the physician. The relationships between the characteristics of the telephone calls and the rates of documentation were then analyzed. RESULTS: There were 248 calls from the two nursing homes during the 2-month study period. Nursing documentation of the issue that prompted the call was present for 80% of total calls. This documentation was more likely to be present with calls for change of patient status and notification of laboratory/radiograph results compared with calls for other issues (117 of 125 [94%] vs. 57 of 63 [90%] vs. 24 of 60 [40%], respectively; chi(2) = 78.3, P <0.0001). Calls that were categorized as "documentation necessary" by the Medical Director were more likely to be documented than calls that were not (132 of 150 [88%] vs. 9 of 35 [26%], respectively; chi(2) = 60.8, P <0.001). Of the 198 calls with any form of documentation, specific mention of physician participation in the communication was present in 89% of these calls. This documentation of physician participation was more likely to be present with calls for laboratory/radiograph notification than with calls for change of patient status or calls for other reasons (57 of 57 [100%] vs. 99 of 117 [85%] vs. 20 of 24 [83%], respectively; chi(2) = 10.0, P = 0.007). Physicians indicated that orders were given during 69% of calls, but orders were only documented for 79% of these interactions. No characteristics of the call were associated with likelihood of order documentation. CONCLUSIONS: In this study, documentation of issues that lead to telephone calls to physicians was not always present. Similarly, orders given by the physician were absent over 20% of the time. Nurses, physicians, and facilities should develop efficient and routine strategies to optimize rates of documentation of telephone communication with physicians.

Aged↗

Telephone-induced seizures: a new type of reflex epilepsy.

PURPOSE: To report a new form of reflex epilepsy in which the seizures are repeatedly and exclusively triggered by answering the telephone. METHODS: Three patients with a history of telephone-induced seizures were studied in detail by means of clinical, EEG, and neuroradiologic investigations. Intensive video-EEG monitoring to record the reflex seizures also was performed in all cases. RESULTS: The patients (two men, one woman, aged 21 to 30 years) had the onset during early adulthood of complex partial and secondarily generalized seizures exclusively triggered by answering the telephone. The seizures were stereotyped, with subjective auditory or vertiginous auras and inability to speak or understand the spoken voices. In one patient, a telephone-induced seizure arising from the dominant temporal lobe was recorded by means of video-EEG technique. In the interictal EEGs, temporal abnormalities were detected in all cases. The patients had a normal neurologic examination and normal magnetic resonance imaging or computed tomography scans. CONCLUSIONS: We suggest that telephone epilepsy is a previously unrecognized form of reflex epilepsy induced by a complex auditory stimulus involving the lateral temporal areas.

Adult↗