Country | Indication/Disease | Intervention | Results | Reference/Comments |
---|---|---|---|---|
Newfoundland Canada | Diabetes outcomes | To assess whether modem link from patient at home to hospital improves diabetes control. RCT: transmission of blood data via modem; N = 42. Patients in "telephone group" performed five blood glucose determinations/day twice/week and transferred data via phone once/week. Control group brought results in to clinic every 6 wk. "Telephone" group counselled every week via telephone to adjust insulin and food intake Duration = 12 weeks. | In treatment group, HbA1c improved from 0.106 to 0.092 (13.20%). The control group improved from 0.112 to 0.102 (8.9%). No significant change in weight, random blood glucose, or insulin. | [14] |
United States | Breast cancer: mammography | RCT: in-person v. telephone v. no mammography counselling. N = 1098. Duration = 4 weeks | Compared to no counselling, telephone counselling was more than twice as effective at increasing mammography adherence, and in-person counselling resulted in almost three times the mammography adherence. | [15] |
United States | Tuberculosis: adherence to medication | Observational videophone Directly Observed Therapy, Short Course (DOTS) program v. standard DOTS. Two way links between home and health department. N = 6. Duration = 24 months | During 304 video- observed treatment doses, adherence was 95%, and patient acceptance of the technology was excellent. Adherence on standard DOT was 97.5%. A total of 8830 driving miles were avoided/288 travel hours | [16] "In selected cases, the use of videophone technology can maintain a high level of adherence to DOT in a cost-effective manner" |
United States | Various indications: patient outcomes | RCT: follow-up phone call by a pharmacist 2 days after discharge from hospital. N = 221. Data collected on patient satisfaction and outcomes. Duration = 7 months | Phone call group more satisfied with discharge medication instructions (86% vs. 61%, P = 0.007). Fewer patients from phone group returned to ER within 30 days (10% phone call vs. 24% no phone call, P = 0.005). | [17] |
United States | Hypertension :adherence to medication | RCT: usual medical care v. computer-controlled telephone system in addition to usual medical care to promote adherence. N = 267 Duration = 6 months | Mean antihypertensive medication adherence improved 17.7% for telephone system users and 11.7% for controls (P = .03). Mean DBP decreased 5.2 mm Hg in users compared to 0.8 mm Hg in controls (P = .02). | [18] |
United States | Hypercholesterolemia: maintenance of change | RCT: Computer assisted telephone: two calls/month for six months v. no calls to maintain initial cholesterol change and provide feedback for patients completing a diet and behavioral cholesterol reduction program. N = 115 Duration = 6 months | Neither group fully maintained initial cholesterol reductions | [19] |
United States | Diabetes outcomes | Observational study: Voice-interactive telephone system (daily self-measured glucose levels or hypoglycemic symptoms). N = 184 Duration = 12 months | Yearly prevalence of diabetes-related crises or hypoglycemia decreased from 3% of total calls to 2% (P < 0.05), with a concomitant statistically significant decrease in Type 2 diabetic HbA1c from 9.7, (SD = 1.03) to 8.6, (SD = 1.54, p = .03) | [20] |
United States | Attendance at adolescent clinic | CT: Telephone reminder 1 day before clinic appointment v. no reminder. N = 703 Duration = 11 months | Attendance rate (65.2%) in intervention group was increased by 47.8% over control | [21] |
United States | Diabetes outcomes | CT: Type 1 diabetes N = 10 Duration = 6 months | Proactive telephone intervention delivered by psychology undergraduates (15-min telephone intervention weekly for 3 months and biweekly for 3 additional months) Intervention group showed 1.2% drop in HbA1c; control group an increase of 0.8%., p < .05 | [22] |
United States | Depression outcomes | RCT: usual care v. telephone care management (feedback to patients/algorithm based intervention) v. telephone care management plus treatment recommendations/practice support N = 613 | Compared with usual care, the practice telephone support intervention led to lower mean depression scores (2.59, P = .008). Compared with usual care, feedback only had no significant effect on treatment received or patient outcomes. Patients receiving feedback plus care management had a higher probability of both receiving at least moderate doses of antidepressants (odds ratio 1.99, 95% confidence interval 1.23 to 3.22) and a lower probability of major depression at follow up (OR = 0.46, 0.24 to 0.86). | [23] |
United States | Immunization rates | Computer-generated telephoned reminders v. control intervention to raise the rates of on-time immunization among preschool-age children in two public clinics in Atlanta, GA. | Intervention group households had faster vaccinations (adjusted OR = 2.12: 1.01, 4.46) but the overall effect of the intervention on immunization levels appeared to be minimal (crude relative risk = 1.07, 95 percent confidence interval = 0.78, 1.46). Only 80 percent of children in both groups were members of a household with a telephone number listed in clinic records. | [24] |
United States | Hypertension adherence to medication | RCT: Nurse administered- intervention via telephone bimonthly v. usual care for hypertension. N = 294 Duration = 2 years | Blood pressure (BP) control not yet reported. Patients with nurse intervention had a greater increase in confidence of their BP management following hypertension treatment than the usual care group. | [25] |
United States | HIV | Cross sectional study within clinical trial: Compare and contrast three different methods for measuring self reported ARV adherence: nurse rating, self report and recall phone interview. N = 35 adolescents | Little agreement between phone calls, clinical nurse rating and self report regarding the level of adherence. | [26] Phone calls were time and labor intensive. "... not recommended as part of regular clinical practice". |
Various | Immunization Rates | Cochrane Review | All types of reminders were effective (postcards, letters, telephone or autodialer calls), with telephone being the most effective but most costly. Effect on rates for childhood vaccinations (OR = 2.02, 95% CI = 1.49,2.72), for childhood influenza vaccinations (OR = 4.19, 95% CI = 2.07,8.49), for adult pneumococcus or tetanus (OR = 5.14, 95%CI = 1.21, 21.8), and for adult influenza vaccinations (OR = 2.29, 95%CI = 1.69, 3.10). | [27] |