“…MATERIALS & METHODS: This case-control study was conducted on 99 patients with RA who referred to a rheumatology clinic in Qazvin, northwest Iran. Sixty five age- and sex-matched healthy controls were recruited as well. …”
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“…Methods: A longitudinal study was carried out in 1445 mothers with newborns in Qazvin city, Iran (September 2015-March 2016). Demographic variables as well as the constructs of theory of planned behavior (TBP) were measured by questionnaires. …”
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“…METHODS: In this cross-sectional study, mandibular permanent incisors were randomly collected in Qazvin City, Iran, and were mounted in eight ternary groups on a plastic slot, using putty molding material. …”
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“…Methods: In this methodological study, participants from 8 high schools (n=1371; 700 males), in Qazvin, Iran, completed the ESS-CHAD, a background information sheet, and Insomnia Severity Index (ISI). …”
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“…Adolescents (n = 4442; mean age = 15.3 years; 50.3% males) were recruited from Qazvin, Iran. In addition to the GAS, all of them completed the following instruments: the nine-item Internet Gaming Disorder Scale–Short Form (IGDS-SF9), Depression Anxiety Stress Scale (DASS), Pittsburgh Sleep Quality Index (PSQI), and a generic quality of life instrument. …”
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“…METHODS: This cross-sectional study included 240 pregnant women with a mean age of 27.98 years who were referred to healthcare centers in Qazvin, Iran. A two-stage random sampling method was used to select the health centers and participants. …”
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“…METHODS: This analytical prospective study recruited 284 pregnant women presenting to six healthcare centers of Qazvin, Iran from February to December 2016. PAPP-A was measured at gestational weeks 11–14 and glucose tolerance test was conducted at gestational weeks 24–28. …”
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“…In ranking, the first to third ranks were occupied by SDH research centers of Kermanshah, Kurdistan, and Qazvin Universities of Medical Sciences. Conclusion: Although knowledge production seems desirable in mentioned research centers, it is essential to create a virtual research network to increase intersectoral collaboration and develop strategies to solve the puzzle of gathering evidence on the social determinants affecting health inequities.…”
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“…METHODS: This was a descriptive, cross-sectional study, in which 375 female students at Imam Khomeini International University in Qazvin in the academic year of 2018–2019 were selected through a stratified random sampling method. …”
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“…METHODS: This cross-sectional study was conducted on 320 COVID-19 patients discharged from hospitals of Qazvin province. Patients’ isolation, self-care health behaviors, reference to public health services and possible related factors were assessed. …”
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“…METHODS: This is an applied mixed-methods exploratory study, in which the statistical population consisted of psychologists from Tehran Province in the qualitative section (n = 8) as well as other individuals aged between 18 and 65 years (mean age = 33) from Qazvin in the quantitative section (n = 102) in 2018. …”
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“…On the other hand, the most likely low-risk cluster with 517 patients, and a RR 0.49 and LLR = 227.03 was identified in the northwestern part of Iran with a radius of 270.38 km and a centrality of 37.25 N and 49.49 E. It includes Zanjan, Qazvin, Gilan and East Azerbaijan, Ardabil, Alborz and Tehran provinces. …”
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“…MATERIALS AND METHODS: This cross-sectional study was conducted on 62 patients (38.7% male, mean age: 44) with non-CF bronchiectasis and involvement of ≥2 lobes in Qazvin, Iran. QoL was evaluated using the St. George's Respiratory Questionnaire (SGRQ). …”
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“…The present study aimed to use a longitudinal design to investigate temporal relationships between nomophobia, addictive use of social media, and insomnia among Iranian adolescents; (2) Methods: A total of 1098 adolescents (600 males; 54.6%; age range = 13 to 19) were recruited from 40 randomly selected classes in Qazvin, Iran. They completed baseline assessments. …”
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“…MATERIALS AND METHODS: This cross-sectional study was performed in Qazvin from 2019 to 2020. The participants included 126 literate mothers who had a daughter between 12 and 14 years and health system information registry. …”
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“…Methods: Overall, 1724 students aged 12-19 yr were selected from 53 high schools in Qazvin City, northwest instead of central Iran through stratified cluster sampling. …”
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“…A total of 10,843 Iranian adults were recruited in Qazvin province using a multistage stratified cluster sampling method. …”
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“…MATERIALS AND METHODS: In this cross-sectional study, 72 prostate biopsy specimens were collected from the Orology Departmen of hospitals of Qazvin University of Medical Sciences. All samples were cultured in aerobic and anaerobic conditions. …”
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“…METHODS: Overall, 41 patients with PTC and 36 patients affected by MNG were recruited from four hospitals in Tehran and Qazvin, Iran in 2018. Thyroid tissues were obtained during thyroidectomy. …”
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“…METHODS: This descriptive and cross-sectional study was conducted on 500 older people residing in Qazvin, Iran, from May 22th to November 21rd, 2021. …”
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