133 research outputs found

    Effect of telephone counseling on continuity and duration of breastfeeding among primiparus women

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    Background & Aim: Breast milk provides many healthy nutrients to infants. Support provided by health care provider has positive effects on duration of breastfeeding. The purpose of this study was to determine the effects of telephone counseling on continuity and duration of breastfeeding among primiparus women. Methods & Materials: This clinical trial was conducted on 140 primiparus women referred to the selected health centers of Tehran University of Medical Sciences in 2010. The participants were randlomly allocated into two equal groups (each: 70 indviduals). The participants in the intervention group received telephone counseling by one of the researchers. The control group received routine care. Data were collected using a questionnaire including demographic characteristics and a breastfeeding check list. Exclusive breastfeeding rates were recorded one and three months after childbirth in both groups. Also, the continuity and duration of exclusive breastfeeding were recored three months after childbirth in both groups. Data were analyzed using the Chi-square test, Fisher's exact test, standard logistic regression and linear regression in the SPSS-16 and the Win Pepi. Results: The average duration of exclusive breastfeeding in the intervention group (8.05±3.99) was significantly more than the control group (6.23±4.03) (P=0.008). In the third month of delivery, continuity of exclusive breastfeeding in the intervention group was more than the control group (P=0.03). Results also showed that telephone counseling was effective in the duration of exclusive breastfeeding (P=0.02). Conclusion: Telephone counseling was effective in continuity and duration of exclusive breastfeeding. Using this inexpensive and easy method can help to increase exclusive breastfeeding, especially in primiparus women

    Waveform Selection for FMCW and PMCW 4D-Imaging Automotive Radar Sensors

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    The emerging 4D-imaging automotive MIMO radar sensors necessitate the selection of appropriate transmit waveforms, which should be separable on the receive side in addition to having low auto-correlation sidelobes. TDM, FDM, DDM, and inter-chirp CDM approaches have traditionally been proposed for FMCW radar sensors to ensure the orthogonality of the transmit signals. However, as the number of transmit antennas increases, each of the aforementioned approaches suffers from some drawbacks, which are described in this paper. PMCW radars, on the other hand, can be considered to be more costly to implement, have been proposed to provide better performance and allow for the use of waveform optimization techniques. In this context, we use a block gradient descent approach to designing a waveform set that is optimized based on weighted integrated sidelobe level in this paper, and we show that the proposed waveform outperforms conventional MIMO-FMCW approaches by performing comparative simulations

    A review of incidence and mortality of colorectal, lung, liver, thyroid, and bladder cancers in Iran and compared to other countries

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    In Iran, a developing country in southwest Asia, an epidemiologic transition is underway from communicable to noncommunicable diseases. In Iran, cancer is the second largest group of chronic non-communicable diseases (NCDs) and the third most common cause of death following heart disease, accidents and other natural phenomena. There are some studies reporting an increasing trend in the incidence and mortality rate of a variety of cancers in Iran. Therefore, controlling and preventive interventions pertaining to cancers must be a main priority for health policy and it is recommended that the high-risk population receive earlier screening. In this review, incidence and mortality of colorectal, lung, liver, thyroid, and bladder cancers in Iran are reported. © 2019 Termedia Publishing House Ltd. All Rights Reserved

    QALY league table of Iran: a practical method for better resource allocation

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    Background: The limited health care resources cannot meet all the demands of the society. Thus, decision makers have to choose feasible interventions and reject the others. We aimed to collect and summarize the results of all cost utility analysis studies that were conducted in Iran and develop a Quality Adjusted Life Year (QALY) league table. Methods: A systematic mapping review was conducted to identify all cost utility analysis studies done in Iran and then map them in a table. PubMed, Embase, Cochrane library, Web of Science, as well as Iranian databases like Iran Medex, SID, Magiran, and Barakat Knowledge Network System were all searched for articles published from the inception of the databases to January 2020. Additionally, Cost per QALY or Incremental Cost Utility Ratio (ICUR) were collected from all studies. The Joanna Briggs checklist was used to assess quality appraisal. Results: In total, 51 cost-utility studies were included in the final analysis, out of which 14 studies were on cancer, six studies on coronary heart diseases. Two studies, each on hemophilia, multiple sclerosis and rheumatoid arthritis. The rest were on various other diseases. Markov model was the commonest one which has been applied to in 45 of the reviewed studies. Discount rates ranged from zero to 7.2. The cost per QALY ranged from 0.144 in radiography costs for patients with some orthopedic problems to 4,551,521 for immune tolerance induction (ITI) therapy in hemophilia patients. High heterogeneity was revealed; therefore, it would be biased to rank interventions based on reported cost per QALY or ICUR. Conclusions: However, it is instructive and informative to collect all economic evaluation studies and summarize them in a table. The information on the table would in turn be used to redirect resources for efficient allocation. in general, it was revealed that preventive programs are cost effective interventions from different perspectives in Iran. © 2021, The Author(s)

    The risk factors and related hospitalizations for cases with positive and negative COVID-19 tests: A case-control study

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    Background: The aim of this study was to evaluate the risk factors for hospitalizations of cases with positive and negative COVID-19 tests. Methods: In this case-control study, the case and control groups consisted of 292 COVID-19 patients and 296 non-COVID-19 patients. Patients who referred to a reference laboratory in Tehran (Iran) in March 2020 were selected and interviewed. The patients were contacted by telephone and data were recorded through a questionnaire. Results: The sample of this study consisted of 588 patients (349 59% females, 239 41% males) with a mean age of 42 ± 15. The results of this study showed that comorbidities like diabetes (OR = 7.42), hypertension (OR = 4.85), asthma and respiratory diseases (OR = 5.64) in addition to symptoms including fever (OR = 6.67), chills (OR = 11.2), anorexia (OR = 11.3), dyspnea (OR = 4.8), weakness and lethargy (OR = 5.7) were the most predictive variables for hospitalization of non-COVID-19 cases. Furthermore, demographical variables like male gender (OR = 3.71), high age (>50; OR = 3.12), BMI (>25; OR = 2.37), travel (OR = 2.79), comorbidities including diabetes (OR = 5.26), hypertension (OR = 3.7) and underlying immunosuppressant patients receiving corticosteroid therapy (OR = 3.62) in addition to symptoms like anorexia OR = 2.55 and dyspnea (OR = 6.99) tend to increase the risk of hospital admission in COVID-19 patients, suggesting their predictive values for hospitalization of COVID-19 patients. Conclusion: Our results indicated that different factors tend to increase the odds of hospital admission in patients with positive and negative COVID-19 tests, suggesting their predictive values for hospitalization. © 202

    A single-center non-blinded randomized clinical trial to assess the safety and effectiveness of PhR160 spray in the treatment of COVID-19 pneumonia

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    7-16COVID-19 is an emerging pandemic that caused a very widespread infection with more than 1000000 cases in Iran within a year. The main cause of mortality among patients with COVID-19 is pulmonary failure. In Iranian Traditional Medicine, essences have been used for curing pulmonary diseases. Pinen-Hydronoplacton-Ribonucleic acid (PHR) is an inhaler spray made of seven different plants, which all are used by humans and have desirable pharmacological features for treating pulmonary symptoms of COVID-19 patients. This study was conducted to assess the safety and effectiveness of PHR160 spray in improving pulmonary symptoms of COVID-19 patients. This was a single-centre, non-blinded randomized clinical trial with two parallel groups in two different wards of Baqiyatallah hospital, Tehran, Iran. Participants were 63 male patients diagnosed with COVID-19 pneumonia, divided into 2 groups of 32 in the intervention group and 31 in the control group. The intervention group received 5 days of PHR160 spray, 10 puffs each day, 300 micrograms in each puff in addition to the routine treatment. Oxygen saturation was measured by a pulse oximeter, every six hours and recorded daily. This study showed that administration of PhR 160 in patients of COVID-19 was safe, and it significantly increased the arterial oxygen saturation percentage in COVID-19 patients. In addition, it decreased hospitalization duration, dyspnea score, and cough score significantly in the patients. The statistical modelling test, with adjusting the age and respiratory rate for baseline and 4 days of the intervention, shows that the oxygen saturation percentage mean was significantly more in the intervention group by 5.14 units (p<0.001)
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