Background & Objectives: Pain is one of the most common problems for which human have always been looking for efficient treatment. Several different factors may cause pain, but one of the most widespread reason is the application of some treatments and nursing measures such as intramuscular injection. The present study was designed to compare between the intensity of pain due to intramuscular injection by two different methods: Z- track and Air lock method.

  Methods: In this semi-experimental study, 60 volunteer female nursing students were included. The subject was injected with one milliliter of sterilized water two times within 24 hours: the first injection by Z method and the second one by the Air lock method. The intensity of pain was measured two times by a scale graded from zero to ten. The results were compared by using descriptive statistics and independent t-test by SPSS 12 software.

  Results: Our findings showed that the mean of pain intensity in Z method was 1.80 ± 1.90, and raised to 3.13 ± 2.33 in Air lock method. Moreover, the intensity of pain in these two different methods had significant difference (p<0.01).

  Conclusion: These results indicated that the pain caused by Z method is less than the pain felt through Air lock method. With respecting to these results the Z method is proposed as preferred method for intramuscular injections.

  Background & Objectives: Food consumption for its hedonic properties can result in caloric intake exceeding requirements and is considered as a major culprit in the rapidly increasing rate of obesity. We compared the dietary patterns and the hedonic questionnaire score in obese and non-obese women. We also investigated the relation between the score of this questionnaire and variety of food items.

  Methods: This case-control study was conducted on 140 women aged 17-44 years that had referred to obesity club at district 4 of Tehran in 2011. Food intake and hedonic score were determined using validated semi-quantitative 168-item food frequency questionnaire and 21-item hedonic questionnaire, respectively. Logistic regression was used to determine the association between obesity and the dietary patterns identified by factor analysis and hedonic hunger score.

  Results: Two dietary patterns were identified as healthy and unhealthy patterns. The adjusted odds ratio of obesity didn’t show any significant trend in none of the dietary patterns. The mean hedonic questionnaire score was higher in case than control group, significantly (p<0.05). The adjusted odds ratio of obesity, for the second and the third tertiles of this questionnaire versus the first tertile of this, was 2.8 and 10.8, respectively (p<0.05).�

  Conclusion: This study shows that there is no difference between the dietary patterns of obese and nonobese women while there is a positive association between hedonic hunger and obesity. It seems that hedonic hunger may lead the obese women to consume unhealthy food choices.