Selected Data-sets from Publications by Martin Bland

If you use any of these data sets in publications or teaching material, please acknowledge both the author(s) of the paper and the original suppliers of the data where given.

Data-sets are in Stata dictionary format. They are plain text ASCII files. There is a list of variables and then the data in a rectangular array. You may need to edit out the dictionary, but with little modification they should be readable by any statistical program. The missing data code is a dot, ".".

Choose the publication and then the data-set from it. Use the File button on your browser to copy the file to your own computer. Then use the Back button to return to this page.

Data are available from the following publications. More data-sets will be added soon.

• Bland M. (1995) An Introduction to Medical Statistics, (some only)
• Bland JM, Altman DG. (1986) Statistical methods for assessing agreement between two methods of clinical measurement.
• Bland JM, Altman DG. (1995) Comparing methods of measurement: why plotting difference against standard method is misleading.
• Bland JM, Altman DG. (1999) Measuring agreement in method comparison studies.

An Introduction to Medical Statistics

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• Forced expiratory volume (FEV) measurements from 57 male medical students (data from Paul Richardson).
• Serum triglyceride from cord blood of 282 babies (data from Tessi Hanid).
• Vital capacity, peak flow, and height for 44 female and 58 male medical students (data from Paul Richardson).
• Geriatric admissions in Wandsworth and mean peak daily temperatures for each week from May to September of 1982 and 1983 (data from Peter Fish).
• Height in a sample of 1794 pregnant women (data from Janet Peacock).
• Vitamin D in a sample of 26 healthy men (data from Douglas Maxwell).
• Random blood glucose in a sample of 40 medical students.
• Biceps skinfold thickness in a sample of Crohn's disease and coeliac disease patients (data from Douglas Maxwell).
• Zidovudine levels in the blood of patients with and without fat malabsorption (data from Moses Kapembwe).
• Mannitol and lactulose gut permeability in patients with AIDS, ARC, asymptomatice HIV positive, or HIV negative (data from Moses Kapembwe).
• Arterial oxygen pressure and compliance in intensive care patients given a constant or decelerating inspiratory waveform (data from Naib Al-Saady).
• FEV1 and height in 20 male medical students (data from Paul Richardson).
• AVP and gestational age (data from Alberto Smith).
• Incidence of Kaposi's sarcoma in Tanzania and distance from a health centre (data from Charles Mutoka).
• Angina attacks in four weeks on placebo and four weeks on pronethalol (data Pritchard et al., Report of a clinical trial from Medical Unit and MRC Statistical Unit, University College Hospital Medical School, London. British Medical Journal 1963; 2: 1226-7).
• Urinary nitrite and gastric pH (data from Nick Hall and Tim Northfield).
• Visual acuity and contrast sensitivity before and after cateract surgery (data of Wilkins).
• PEFR measured by Wright peak flow meter and mini Wright peak flow meter (collected by me).
• Time to recurrence of gall stones (data from Riadh Jasrawi).
• Plasma magnesium in 140 apparently healthy people (data from Hugh Mather).
• Muscle strength, age and height in 41 male alcoholics (data from Douglas Maxwell).

Statistical methods for assessing agreement between two methods of clinical measurement

Data from Bland JM, Altman DG. (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet i, 307-310.

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• Peak expiratory flow rate measurements made using a Wright peak flow meter and a mini Wright peak flow meter.
• Oxygen saturation measurements made using an oxygen saturation moinitor and pulsed oxygen saturation (data supplied by Hugh Sealey).
• Mean velocity of circumferential fibre shortening measurements made by long axis and short axis echocardiography (data supplied by Paul D'Arbela).

Comparing methods of measurement: why plotting difference against standard method is misleading

Data from Bland JM, Altman DG. (1995) Comparing methods of measurement: why plotting difference against standard method is misleading. Lancet, 346, 1085-7.

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• Systolic blood pressure (mm Hg) measurements made using a standard arm cuff and a finger monitor (data supplied by Dr. A. Close).

Measuring agreement in method comparison studies.

Data from Bland JM, Altman DG. (1999) Measuring agreement in method comparison studies. Statistical Methods in Medical Research 8, 135-160.

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• Systolic blood pressure measurements made simultaneously by two observers (J and R) and an automatic blood pressure measuring machine (S), each making three observations in quick succession (data supplied by Dr E O'Brien)
• Plasma volume expressed as a percentage of normal in 99 subjects, using two alternative sets of normal values due to Nadler and Hurley (data supplied by C Dore).
• Fat content of human milk determined by enzymic procedure for the determination of triglycerides and measured by the Standard Gerber method (g/100 ml).
• Cardiac output by two methods, RV and IS, for 12 subjects (data provided by Dr LS Bowling)

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Last updated: January 13, 2004.

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