The ability of making communication is a basic skill and is considered as a permanent factor in presenting health services (
17). There are strong evidences showing that the communication of healthcare providers to patients, is a good predictor for acceptance, regimen adherence, better clinical consequences and patients satisfactions (
18). In twentieth century, contemporary to understand the necessity of acquirement knowledge and more information about making communication, high degree schools and universities throughout the world, allocated a teaching course for this subject (
19).
The results of the present study showed that knowledge, attitude and performance of staff in communication skills are undesirable. Researchers showed that in many countries there are serious problems in making communication of medical staff and communication skills knowledge and attitude are in a low level (
20,
21). Also in the Alimoradi colleagues' study, the performance of midwife speech and inspect communication was 62% and 36% respectively which was reported undesirable and is close to the existing results (
15). On the basis of the performed studies , physicians and medical staff have few information and knowledge about general communication skills related to training deficit and by considering that communication skills are mostly are acquirable and learnable and clinical experience has only a few role on its promotion (
22). Communication skills training to health staff is one of the most basic ways to promote the services quality and improve the health care services results which has a main role in determining patient’s satisfaction consequently (
23). The present study showed that there is a positive and meaningful association between knowledge and attitude and performance. On the basis of the researches on British medical training board, knowledge deficit and insufficient awareness about communication skills and negative attitude of staff regarding patients are most important obstacles of perfect and correct communication performances which are close to the present research results (
24). In a study performed by Aghabarari and colleagues to determine obstacles of using nurses communication skills in mutual contact to patients was found that, negative attitude of nurses in making communication to patients is one of the most important obstacles in making perfect communication and stated that improving nurses attitude with patients is an important factor to promote health (
25). The study by Garry Tell and colleagues showed that those physicians who have had more knowledge about communication skills, were more successful in consulting mothers (
26). Sharifirad and colleagues found in their study that ability and increasing the knowledge and attitude have some effects on improving the communication performance of health personal to mother and has an important role in growth and nourishing children and promotion of their health (
27). The study performed by Will kinson and colleagues showed that attitude improvement of the participants has been associated with performance improvements (
28). Arabshahi and colleagues study also showed that more than a half of the research units (medical interns) did not have sufficient knowledge about communication with patients and this matter prevented them from correct performance (
29). All of the referred studies are in concordance with the results of this study ,In this study, There was no meaningful association between knowledge, attitude and performance related to gender, marital state and education level (post diploma, AB), and this matter can be due to the lack of training and available textbooks about communication skills for students in the medical group, that is close to Alimoradi and colleagues study as using the communication skills among occupying midwives in health care centers of Tehran. In this study there was no association between education levels, years past from the graduation, service years and education place, with the use of communication skills which its reason is lack of a teaching course as communication skills in midwifery training schedule, in the country (
15). Also the results showed there is no meaningful difference between understudy persons knowledge and attitude and different groups regarding service state (official, projective, contractive) (P ˃ 0.05), but among the persons performance and different groups regarding service state (official, projective, contractive) is meaningful statistically and one the other side there was a meaningful association between age and service years. From the researchers' point of view, it can be said that the reason is the graduated persons motivation to reach job stability, but among the official staff and higher ages because of the lack of motivation, confidence, job stability, the weaker communication performance is reported. By considering the present study findings, the extent of knowledge, attitude and using communication skills was undesirable by health staff, and it is confirmed by comparing this study with the studies about other medical group staff. Therefore it is suggested to appoint a text unit entitled communication skills during service, correct arrangement and settings at works environment and casting to use communication skills among staff and encourage and calling them by managers.