Background & Objectives: Opium addiction is a major social, psychological and health problem in the world. In past decades addiction to legal and illegal drugs has been widespread and over 1000 kinds of narcotics have been recognized, which are used in different ways including eating, smoking, injection and inhaling. Statistics published by international organizations such as UNDCP, WHO and UNSCO indicated an increasing trend in drug abuse worldwide. The countries are different only in the pattern of drug abuse. This study investigates the pattern of drug abuse in last 5 years in Ardabil.

  Methods : This is a descriptive, analytical and prospective study. To obtain the trend of substance abuse the records of all addicts in 1998 (684 cases) and 2002-2003 (341 cases) were studied. The collected data were analyzed by SPSS software (rel.11) using descriptive statistics.

  Results: The findings indicated that in the last five years the use of hashish, opium extract and other substances has decreased whereas the trend of heroin and opium use has increased. The use of opium has increased from 48.07% in 1998 to 67.4% in 2002-2003. Also the heroin use has increased from 8.5% in 1998 to 27.5% in 2002-2003. Moreover, the use of hashish, opium extract and other narcotics has decreased. The highest decrease (23.5%) belonged to opium extract and the highest increase (19%) to heroin.

  Conclusion : According to the results we could say that the pattern of substance abuse in Ardabil in the last five years has changed and heroin and opium consumption has increased.

 Background and Objectives: Children are one of the most vulnerable groups of society. Any qualitative and quantitative problem in offering health services to them is a main health and social problem. Cooperative health centers for the first time in Iran were established in East Azerbaijan as a proper strategy for solving health problems and limitations of expansion of government health centers. This study was conducted to evaluate their quality of services to children under one year old in comparison with governmental health centers.

 Methods: This descriptive and cross-sectional study was done on 7 cooperative health centers and 14 neighboring government health centers selected by convenience method. Data were collected by filling checklists obtained from observation of services offered to these children by healthcare personnel as well as studying the children's health records. Descriptive (absolute and percent frequency distribution, mean and standard deviation) and inferential (independent samples t-test) statistics were used for analyzing the data.

 Results: The findings showed that the quality of health care for children under one was good (85.71%) in cooperative centers and moderate (78.57%) in government health centers and their statistical difference was significant (P=0.002). In terms of services about growth monitoring of child, nutrition of infant and mothers' education, cooperative health centers had better practice compared to government health centers (P= 0.001, 0.007and 0.023respectively). Regarding the equipment both centers had good facilities (85.71%) and there was no statistically significant difference between them (P= 0.912).

 Conclusion: The results showed that, in most cases, the quality of health care given to children under one was good in cooperative health centers and moderate in government centers. This optimum performance of cooperative centers can encourage health care authorities to plan for the expansion of such centers to compensate for the deficiencies of health services especially in children under one year old.

  Back grounds and objectives : Arthrosclerosis is the major cause of cerberovascular disorders and major problems of industrial countries. Mortality from chronic diseases such as arthrosclerosis and mortality from infectious diseases have a reverse, relationship with economic and educational levels of people. For this reason, investigating the relationship of MI with other risk factors such as infections has been of great interest.

  Methods: This was a case- control study. 60 patients with MI and 60 matched cases were selected from other wards of Boali Hospital. All of the patients who had been admitted with myocardial infarction diagnosis in the time of study were selected and information about them was recorded in a researcher made questionnaire. Serum sample from patients and control case were sent to determinations of IgG Anti Chlamydia antibodies with enzyme immune assay. Control case were selected from other wards of hospital who matched in age, sex and same test in serum sample was done.

  Results: In this study in each group 48 persons (80%) were male and 12 persons (20%) were female. The range of age group was 35-80. Mean age group was 58.83±12.6 (SD) and mean age of control tools was 59.08±11.59.All of the patients in each group had anti Chlamydia antibodies (IgG) (titer more than 5U/ml). The mean range IgG in both groups were compared through t-test and there was no significant difference between them (p=0.85).

  Conclusion: In this study all of the cases and controls had anti Chlamydia antibodies. (IgG) high prevalence due to cold climate and high crowd of people in this area may be related to Chlamydia infection.