interquartile range


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interquartile range

The middle 50% of a set of data. It represents all the data greater than or equal to the 25th percentile and less than or equal to the 75th percentile.
See also: range
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Table 1: Median and interquartile range for each statement in STEEM for the whole group (N=91), Male (n=45), and Female (n=46) Internship Students.
The lower value was a median of a 4 with an interquartile range of 3.
EBV DNA: [intestinal versus diffuse; 690 (interquartile range 169.85 to 2541.81) versus 2373.4190 (interquartile range 150.35 to 9675) (p = 0.382)].
To neatly summarize the trends of the interquartile ranges of family life events by cohorts and gender, we also use multiple classification analysis (MCA).
The interquartile range covers 3.1 percent to 7.4 percent.
Interquartile ranges of perfusion parameters for subtypes of anterior mediastinum lesions BF BV PS Thymic hyperplasia 33.67-69.57 5.32-12.57 11.66-27.94 Thymoma 48.47-111.7 8.47-19.41 11.33-27.53 Lymphoma 24.91-56.16 3.08-6.82 3.83-14.41 All malignant tumors 25.75-59.43 4.67-8.77 11.43-16.99 This Table is intended to be an addendum to data presented in Bakan et al.
By the end of the study, 36 children developed asthma, including 20 boys and 16 girls, median age 7.7 years (interquartile range, 1.4- 9.2 years) (Table 6).
In the tables, data with normal distribution are expressed as mean[+ or -]standard deviation, whereas those with skewed distribution are expressed as median (interquartile range).
Control NAFLD Parameters (n = 60) (n = 23) Age (yr) 47.4 [+ or -] 9.7 43.5 [+ or -] 11.4 Sex (M/F) 32/28 17/6 Viral hepatitis (hbv/hcv) No No Albumin (g/L) 46.7 [+ or -] 3.6 48.0 [+ or -] 2.6 Bilirubin ([micro]mol/L) Median 11.7 12.5 Interquartile range 9.0-15.2 8.0-17.3 AST (U/L) Median 17.5 40.0 * Interquartile range 14.0-20.8 36.0-57.0 ALT (U/L) Median 17.5 66.0 * Interquartile range 12.5-24.0 58.0-95.0 Creatinine ([micro]mol/L) 68.5 [+ or -] 12.1 70.1 [+ or -] 17.9 PT (s) 11.5 [+ or -] 0.6 11.5 [+ or -] 0.7 INR 1.0 [+ or -] 0.1 1.0 [+ or -] 0.1 Child-Pugh score n.a.
Continuous variables were presented as mean [+ or -] standard deviation if normally distributed and as median (interquartile range) if not normally distributed.
In all, 234 patients (26%) converted to dementia over a median follow-up time of 1.44 years (interquartile range, 1.02-2.24 years).