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This is due to the fact that this analysis is based on two studies, one in children and one in adolescents.
We found effect modification even when we omitted the PEACE studies (see Supplemental Material, Tables 4 and 5), for the effect of NO2 on asthma symptoms, with higher associations for asthmatics and during the summer (the latter based on two studies in one stratum).
We added a fifth part on psychological responses to pandemic influenza and a sixth part on demographics of respondents which were based on two studies previously published (one on general practitioners' response to SARS and one on general public response to swine flu) [ 21, 22].
This review yielded correlation coefficients based on one study only (Additional file 2; representative of one population), average effect sizes based on two studies (Table 3; representative of two populations), and average effect sizes based on three or more studies (Table 3; representative of all populations).
The comparisons between cognitive and behavioural interventions used to inform the guideline development was based on two studies [ 30, 58] one of which was excluded from this meta-analysis due to the main outcome measure not being reported [ 58].
Based on two studies of low-intensity clinic-based weight loss interventions, we estimate that approximately 20% of patients in the SRA+G arm will lose 5% of their body weight over the course of a year, compared to approximately 10% of patients in the SRA arm [ 36, 37].
Similar(15)
This paper addresses a multitemporal analysis of land cover and use changes during 56 years (1940 1996) in part of the Bogotá highplain, based on two study sites.
The report was based on seven studies published in English since 2002 (involving women variously treated with real acupuncture, sham acupuncture or no acupuncture) and found that genuine acupuncture could increase a woman's chance of pregnancy by 65%.
Our conclusions are based on ten studies included in the review.
For axillary lymph node staging using FDG-PET/CT, a systematic review based on seven studies found an average sensitivity of 56% with 93% specificity [7].
The IPS-I-model is based on three studies, in which students in secondary and (post) higher education were asked to solve information problems, while thinking aloud.
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based on two literature
based on two premises
based on two algorithms
based on two notations
based on two adults
based on two ideas
based on two propositions
based on two criteria
based on two steps
based on two arguments
based on two axioms
based on two grounds
based on two pieces
based on two tragedies
based on two surveys
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com