137 items found

Groups: Open Access Tags: Clinical research design Medicine epidemiology

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  • dataset

    Demographic characteristics of the participants.

    Fallers are patient who declared at least one fall in the six previous months. No statistically significant difference was found between the two population regarding age,...
  • dataset

    Volunteer Bias in Recruitment, Retention, and Blood Sample Donation in a Rand...

    BackgroundThe vulnerability of clinical trials to volunteer bias is under-reported. Volunteer bias is systematic error due to differences between those who choose to participate...
  • dataset

    Demographic data

    **P<0.01; SD, standard deviation; Max/Min, maximal/minimal.The number of participants did not differ between genders (Chi-square P>0.05). The dancer and pianist groups...
  • dataset

    Study sample.

    Sample characteristics and the results of the instruments characterizing ADHD-symptoms in 57 patients with bulimia nervosa (BN) compared to 40 healthy controls (HC). HC:...
  • dataset

    Knowledge of CGs (quotes).

    Knowledge of CGs (quotes).
  • dataset

    Description of methods to derive indirect and mixed estimates.

    Description of methods to derive indirect and mixed estimates.
  • dataset

    Trends in median (interquartile range) five year running actual citation inde...

    ACI is calculated by dividing a publication's total citations five years post-publication by five. Lower citation counts in 2008 may reflect incomplete citations reported to Web...
  • dataset

    Meta-Analysis of Repository Data: Impact of Data Regularization on NIMH Schiz...

    Human geneticists are increasingly turning to study designs based on very large sample sizes to overcome difficulties in studying complex disorders. This in turn almost always...
  • dataset

    Patient characteristics at baseline.

    ║PC20 methacholine is expressed as geometric mean (standard deviation in doubling dose (DD)). ‡range 1 to 5 (higher scores indicate more dyspnea); †range 0 (best) to 100...
  • dataset

    Results of fits of optimal excess relative risk model (2) (maximum likelihood...

    aUnless otherwise stated all p-values refer to improvement in fit of model immediately above indicated one in the Table.bp-value for improvement in fit over null model (without...
  • dataset

    Number of subjects with several of the same type of finding within the stroke...

    Number of subjects with several of the same type of finding within the stroke lesion section of Table 1.
  • dataset

    Characteristics of the participants.

    Abbreviations: SD, standard deviation; BMI, body mass index; WC, waist circumference; WHtR, waist-to-height ratio; HDL-c, high-density lipoprotein cholesterol; LDL-c,...
  • dataset

    Characteristics of included trials.

    PI, plaque index; GI, gingival index; PPD, probing pocket depth; CAL, clinical attachment loss; GR, gingival recession; BOP, bleeding on probing; NA, not available; CHX,...
  • dataset

    r37980778c78--a4cd5e11fb874d9076d5ff5fd05bfa27

    ObjectivesTo compare physical activity (PA) subcomponents from EPIC Physical Activity Questionnaire (EPAQ2) and combined heart rate and movement sensing in older...
  • dataset

    Baseline characteristics of participants.

    Data are presented as mean±SD, median (interquartile range) or percent. Chi-square test for categorical variables, the unpaired t test or Mann-Whitney U test for continuous...
  • dataset

    Descriptive statistics for birth size and maternal socio-demographic factors ...

    ANC: Antenatal Care; CC: Chest Circumference; HC: Head Circumference; MUAC: Mid-Upper Arm Circumference; LSI: Living Standard Index. 1Any delivery occurred before 37 weeks of...
  • dataset

    Characteristics of Study Population.

    Continuous variables are presented as median and range. 1: CD: Crohn’s disease, UC: ulcerative colitis, IBS-D: diarrhea predominant IBS, IBS-C: constipation predominant IBS,...