Abstract
The purpose of this study was to determine the effectiveness of healthcare services of
doctors and nurses in the Primary Care Network of Na Klang Hospital, Nongbua Lamphu Province,
under the Universal Health Care Program (UC). The study was conducted as a quasi-experimental
research in the period August›December 2004. The experimental group consisted of 48 networked doctors and nurses working at the Na Klang Primary Care Unit (Na Klang PCU) and the control group consisted of 47 networked doctors and nurses working at the Sri Boon Reung Primary Care
Unit (Sri Boon Reung PCU). Subjects in the experimental group received training using a problem based approach in order to improve their service effectiveness; there was no intervention for the control group. A questionnaire was used to gather general information, information on the health
promotion service, medical treatments, disease prevention, and rehabilitation. Data were gathered twice: pre and post experimental period and were analyzed using percentage, arithmetic mean,
standard deviation, and paired sample t-test. The results showed that, after the experimental period,
the Primary Care Unit networked doctors and nurses in the experimental group had higher
effectiveness in providing healthcare services, which was higher than that of the control group at a
statistically significant level. It was concluded that the advantage of this study includes the
application of the research results as a guideline in improving healthcare services, health promotion
service, medical treatments, disease prevention, and rehabilitation of the Na Klang Hospital
Network in order to make the services more effective.