title: Effects of Hospital Workers' Friendship Networks on Job Stress.
abstract: BACKGROUND
  This study attempted to identify the sources of job stress according to job position and investigate how friendship networks affect job stress.
  
  
  METHODS
  Questionnaires based on The Health Professions Stress Inventory (HPSI) developed by Wolfgang experienced by healthcare providers were collected from 420 nurses, doctors and radiological technologists in two general hospitals in Korea by a multistage cluster sampling method. Multiple regression analysis was used to examine the effects of friendship networks on job stress after controlling for other factors.
  
  
  RESULTS
  The severity of job stress differed according to level of job demands (p = .006); radiologic technologists experienced the least stress (45.4), nurses experienced moderate stress (52.4), and doctors experienced the most stress (53.6). Those with long-term friendships characterized by strong connections reported lower levels of stress than did those with weak ties to friends among nurses (1.3, p < .05) and radiological technologists (11.4, p < .01). The degree of cohesion among friends had a positive impact on the level of job stress experienced by nurses (8.2, p < .001) and radiological technologists (14.6, p < .1). Doctors who participated in workplace alumni meetings scored higher than those who did not. However, those who participated in alumni meetings outside the workplace showed the opposite tendency, scoring 9.4 (p < .05) lower than those who did not. The resources from their friendship network include both information and instrumental support. As most radiological technologists were male, their instrumental support positively affected their job stress (9.2, p < .05). Life information support was the primary positive contributor to control of nurses' (4.1, p < .05), radiological technologists' (8.0, p < .05) job stress.
  
  
  CONCLUSIONS
  The strength and density of such friendship networks were related to job stress. Life information support from their friendship network was the primary positive contributor to control of job stress.
authors.affiliation: Department of Quality Improvement and Patient Safety, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Yae
authors.initials: SY
authors.lastname: Shin
authors.affiliation: Department of Hospital Management, Graduate School of Public Health, Yonsei University, Seoul, Korea.
authors.forename: Sang Gyu
authors.initials: SG
authors.lastname: Lee
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010564:Personnel, Hospital; D012944:Social Support; D013315:Stress, Psychological / Q000453:epidemiology* / Q000523:psychology*