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2,215 Possible Causes for Variable Duration

  • Common Cold

    After accounting for possible confounding variables, cold severity and duration were significantly lower in those reporting perfect CARE scores.[ncbi.nlm.nih.gov] Average scores for each sleep variable were calculated over the 14-day baseline.[ncbi.nlm.nih.gov] In a second set of regressions, each analysis contained a single control variable together with either sleep duration or efficiency (32 analyses).[ncbi.nlm.nih.gov]

  • Vitamin D Deficiency

    Correlation between the questionnaire variables (duration of sun exposure, amount of exposed skin, total sun exposure score - TSES and other data) and serum 25OHD concentration[ncbi.nlm.nih.gov] Limitation: Variability across studies in 25-hydroxyvitamin D assays and baseline levels, treatment doses, use of calcium, and duration of follow-up.[annals.org]

  • Bronchitis

    Patient age, duration and severity of illness, chest examination findings, sputum Gram stains, C‐reactive protein levels ( Jonsson 1997 ), and cigarette smoking are variables[doi.org]

  • Acute Bronchitis

    Patient age, duration and severity of illness, chest examination findings, sputum Gram stains, C‐reactive protein levels ( Jonsson 1997 ), and cigarette smoking are variables[doi.org]

  • Upper Respiratory Infection

    The evidence supporting these claims is variable and is the focus of this article, with an emphasis on complementary and integrative therapies.[ncbi.nlm.nih.gov] Fourthly, the methods used in individual studies to measure and report symptoms were highly variable, and the absence of consistent (daily) reporting for similar durations[bmj.com] Because no known cure exists for a URI, numerous products are available, each marketed with the promise of alleviating the associated symptoms and/or shortening the duration[ncbi.nlm.nih.gov]

  • Viral Upper Respiratory Tract Infection

    Fourthly, the methods used in individual studies to measure and report symptoms were highly variable, and the absence of consistent (daily) reporting for similar durations[bmj.com] For example, the 2008 National Institute for Health and Care Excellence guidelines for treatment of respiratory tract infections include estimates of average duration of the[bmj.com] […] prescribe antibiotics or consider other treatments. 3 5 6 7 Commonly used estimates of the expected time course of symptoms of common respiratory tract infections are highly variable[bmj.com]

  • Acute Alcohol Intoxication

    Table Estimated population mean and variability within and between subjects, for duration thresholds and Surround Suppression Index.[jov.arvojournals.org] The mortality of ethylene glycol intoxication is variable, ranging from 1 to 22% ( 8, 10, 78 ).[cjasn.asnjournals.org] Population mean Within-subject variability, SD (% SD /mean) Between-subject variability, SD (% SD /mean) Threshold on 0.7 stimulus, θ small 39 ms 4 ms (10%) 15 ms (38%) Threshold[jov.arvojournals.org]

  • Urinary Tract Infection

    Duration of catheterisation was variable: one day ( Pettersson 1989 ), one to 2.5 days ( Schiotz 2002 ), one to three days ( Knoff 1985 ), usually three days ( Tyreman 1986[dx.doi.org] To determine whether the following may cause variability in observed treatment effects: The method of bladder management type.[dx.doi.org] The effect of short or longer term duration of treatment. Study quality. Abnormalities of renal tract function and/or structure.[dx.doi.org]

  • Vitamin B12 Deficiency

    After adjustment for possible confounders, the variables associated with B12 deficiency were: metformin, hypothyroidism, age and type 2 diabetes mellitus duration.[ncbi.nlm.nih.gov] This was followed by duration of metformin use and patient age.[doi.org] The recognition of these variables will contribute to optimize the screening and prevention of the B12 deficiency in type 2 diabetes mellitus.[ncbi.nlm.nih.gov]

  • Acute Cystitis

    Duration of catheterisation was variable: one day ( Pettersson 1989 ), one to 2.5 days ( Schiotz 2002 ), one to three days ( Knoff 1985 ), usually three days ( Tyreman 1986[dx.doi.org] To determine whether the following may cause variability in observed treatment effects: The method of bladder management type.[dx.doi.org] The effect of short or longer term duration of treatment. Study quality. Abnormalities of renal tract function and/or structure.[dx.doi.org]

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