Cellular phone and Internet-based individual intervention on blood pressure and obesity in obese patients with hypertension.

Source: Park, M. J., et al. 2009 - Pubmed ID: 19643661

Setting: South Korea, Tertiary care hospital

Study design:

CT- pro


Follow up: 8 weeks

Patient group:

Sample size:

Total: 55 (49)

IG: 30 (28)

CG: 25 (21)


Inclusion criteria:

  • Hypertension (BP> 120/80mmHg)
  • Obesity (BMI>21 kg/m2)
Type of technology:


  • Messaging
  • Education


  • Data transfer
  • Monitoring

Home monitoring

  • Blood pressure
  • Weight

Intervention: Patients upload clinical data to webpage. Health provider view information and conducted recommendations for patients via internet or SMS. Recommendations consisted of continuous education on diet, exercise, medication adjustment, and bodyweight levels. All medication adjustments were communicated to the patients’ doctor.


Duration: 8 weeks
Add on: NA


Control group: NA

Clinical effect/ Patient safety:

Clinical effect:

  • Blood pressure Sys →
  • Blood pressure Dia ↓
  • Body weight →
  • Waist circumference ↓
  • Cholesterol →

Patient safety: NA

Patient experiences/ Staff experiences:

Patient experiences:  NA

Staff experiences: Staff spent about ten minutes/week sending the optimal recommendations to each intervention patient.

Costs and organization:



  • Blood pressure
  • Weight measure

Staff resources

  • Development of webpage


Staff resources

  • Training patient (30 min before intervention)
  • Messaging patients with recommendations


  • Changes I medication were communicated to GP.

Health care utilization: NA

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“↑”: Statistically significant increase

“↓”: Statistically significant decrease

“→”: Statistically insignificant (no difference)