MDX Health Digest (MDXHD) is a bibliographic database created for public use by healthcare professionals, including physicians, nurses, librarians, nutritionists and medical writers to meet the increasing need for individuals to have access to health information on which to make important medical decisions.
Each citation includes the essential bibliographic data and an abstract. Sources for the bibliographic data and abstracts include magazines, newsletters, general interest magazines, newspapers, medical school and hospital publications, and medical journals. Approximately 40% of the included bibliographic data comes from the MEDLINE database.
The following alphabetical list provides the two-letter label, the relevant alias, and an example for each MDX Health Digest field.
===== ============ Label Name/Example ===== ============ ab Abstract [Word Indexed] example 1: facilitator.ab. example 2: joint tissue$.ab. All records in MDX Health Digest contain abstracts. The abstract index contains all searchable words from the abstract. Stopwords, such as "the" and "of" are not searchable. an Accession Number [Phrase Indexed] example 1: 960012.an. example 2: 95408067.an. The Accession Number (AN) field contains the number assigned to uniquely identify a particular record. MDX Health Digest consists of both MDX records, and records from MEDLINE. The Accession Number will consist of 8 digits for MEDLINE records, or 6 digits for MDX records au Author(s) [Phrase Indexed] example 1: sachs bp.au. example 2: sachs$.au. The Author (AU) field contains the authors of the article. The format for authors is last name followed by one or more initials: Smith JC or Smith J. co Comments [this field is display only] ds Data Source [this field is display only] em Entry Month [Phrase Indexed] example 9701.em. The Entry Month (EM) field contains the issue (year and month) in which a document was added to MDX Health Digest. The EM field appears in the format YYMM. All records indexed prior to January 1995 will have an EM of '9400'. fs Floating Subheading [Phrase Indexed] example 1: ae.fs. Subheadings are qualifiers added to MeSH subject headings to refine their meaning. Terms such as "etiology" or "therapy", when combined with a MeSH heading, give a very precise idea of what an article covers. The Floating Subheadings (FS) field contains the 2-letter codes, such as "po" for poisoning. hw MeSH Heading Word [Word Indexed] example 1: fatigue.hw. example 2: acoustic$.hw. Sometimes you may wish to retrieve every MeSH subject heading that includes a particular word; this is done by searching the single word in the Subject Heading Word (HW) field. ip Issue/Part [Phrase Indexed] example 22.ip. The Issue/Part field (IP) contains the issue and/or part for a particular volume of a journal. This field usually displays as part of the Source (SO) field. jn Journal Name [Phrase Indexed] example 1: jama.jn. example 2: glamour.jn. The Journal Name (JN) field contains the full name of the journal in which the article was published. Journal names are indexed as phrases, so enter enough letters of the journal name to locate the name in the index: new engl (for New England Journal of Medicine). Stopwords such as "of" ARE included in the JN index, but when "the" is the first word of a journal, it has been stripped. jw Journal Name Word [Word Indexed] example 1: sports medicine.jw. example 2: clinic$.jw. The Journal Word (JW) field contains individual words from every journal name in MDX Health Digest. Stopwords such as "the" or "of" are not included. This field is used to retrieve every occurrence of a journal which includes a particular word, such as "obstetrics." kf Keywords Word [Word Indexed] example 1: heart.kf. example 2: seizure$.kf. Sometimes you may wish to retrieve every Keyword that includes a particular word; this is done by searching the single word in the Keywords Word (KF) field. kw Keywords [Phrase Indexed] example 1: heart attack.kw. example 2: aspirin.kw. The Keywords (KW) field contains the MDX controlled vocabulary terms. All citations in MDX Health Digest, regardless of the data source, are indexed using these terms. The Keywords field is phrase indexed. pg Pagination (First page) [Phrase Indexed] example 14.pg. The Page (PG) field consists of the inclusive pagination of a journal article. This field is usually displayed as part of the Source (SO) field. sh MeSH Headings [Phrase Indexed] example 1: myocardial infarction.sh. example 2: myocardial infarction/ example 3: *myocardial infarction/ example 4: *myocardial infarction/et The MeSH Heading (SH) field contains the Medical Subject Headings used by indexers at the National Library of Medicine (NLM) to describe the content of an article. In MDX Health Digest approximately 40% of the citations come from the MEDLINE database. Only MEDLINE records will be indexed with MeSH terms. MeSH headings are entered into the index as phrases and should be searched as they appear in the NLM MeSH books. ti Title [Word Indexed] example 1: macrobiotic.ti. example 2: female condom.ti. The Title (TI) field contains the English language version of a title. Stopwords such as "of" or "the" will display in documents but do not appear in the Title index. However, the word "a", which is a stopword in other fields CAN be searched in titles. tw Textword [from AB andTI fields] example 1: sex determination.tw. example 2: viral mutation$.tw. The Textword (TW) field is an alias for the fields in a database which contain text words and which are appropriate for a subject search. The Textword field in MDX Health Digest includes Title (TI) and Abstract (AB). vo Volume [Phrase Indexed] example: "7".vo. The Volume (VO) field consists of the volume and issue of a serial publication. This field is usually displayed as part of the Source (SO) field. yr Year [Year of Publication] example 1: 97.yr. example 2: 1997.yr. The Year (YR) field contains the year in which an article was published. Only the last two digits of the year appear in the index.
The following are the Ovid limits for the MDX Health Digest database. Both forms of syntax for applying the limit directly at the command line are given where relevant.
Latest Update Command Syntax: ..l/1 up=y Sentence Syntax: limit 1 to latest update MEDLINE Sentence Syntax: limit 1 to medline NonMEDLINE Sentence Syntax: limit 1 to nonmedline Publication Year Command Syntax: ..l/1 yr=1996 Sentence Syntax: limit 1 to yr=1996
Command Syntax: ..c/mdxhd Sentence Syntax: use mdxhd
<1> Accession Number 96412219 (NLM) Author(s) Osganian SK. et al. Title Changes in the nutrient content of school lunches: results from the CATCH Eat Smart Food service Intervention. Source Preventive Medicine. 25(4). 400-12. 1996 Jul-Aug. Abstract BACKGROUND: The Child and Adolescent Trial for Cardiovascular Health (CATCH) tested the effectiveness of a multilevel intervention aimed at promoting a healthful school environment and positive eating and physical activity behaviors in children. The CATCH Eat Smart Program targeted the school food service staff and aimed to lower the total fat, saturated fat, and sodium content of school meals. METHODS: The Eat Smart intervention was conducted in 56 intervention schools over a 2(1/2)-year period.+Five consecutive days of school menu, recipe, and vendor product information were collected from intervention and control schools at three intervals, Fall 1991, Spring 1993, and Spring 1994, to assess the nutrient content of school menus as offered. RESULTS: There was a significantly greater mean reduction in the percentage of calories from total fat (adjusted mean difference -4.1%; P < 0.0001) and saturated fat (adjusted mean difference -1.3%; P = 0.003) in intervention compared with control schools from baseline to follow-up. Although the sodium content of school lunches increased in both conditions, the mean increase was significantly lower in intervention schools (adjusted mean difference -89 mg; P = 0.034). There were no statistically significant differences for total amounts of cholesterol, carbohydrate, protein, dietary fiber, total sugars, calcium, iron, vitamin A value, and vitamin C. Average total calories decreased significantly; however, the mean total calories (683 kcal) for intervention schools remained above one-third of the Recommended Dietary Allowances for this age group. CONCLUSIONS: The CATCH Eat Smart intervention successfully lowered the total fat and saturated fat content of school lunches as offered, while maintaining recommended amounts of calories and essential nutrients. Keywords Child; Nutrition; Education; Fat, dietary; Sodium. MeSH Subject Headings Adolescence *Cardiovascular Diseases/pc [Prevention & Control] Child Dietary Fats Female *Food Services/st [Standards] *Health Promotion/og [Organization & Administration] Human Intervention Studies Male Nutritional Requirements Program Evaluation *School Health Services/og [Organization & Administration] Sodium, Dietary Support, U.S. Gov't, P.H.S. United States Data Source MEDLINE RECORD, MDX Health Digest, by Medical Data Exchange. Entry Month 9702. <2> Accession Number 970009 Author(s) Coleman E. Title Nutrition therapy for diabetes has evolved. Source Sports Medicine Digest. 18(10). 117-118. 1996 Oct. Abstract The American Diabetes Association's 1994 nutrition recommendations provide a new model for the dietary treatment of diabetes called medical nutrition therapy. It is a four-pronged approach that includes assessing the individual's metabolism and lifestyle, identifying nutrition goals, designing an intervention to achieve those goals, and evaluating therapeutic outcomes. The guidelines stress the importance of controlling blood glucose and lipid levels in overweight individuals with non-insulin-dependent diabetes mellitus (NIDDM). The American Diabetes Association recommends that protein provide 10-20 percent of total calories. The recommended fat intake for an individual patient depends on glucose, lipid, and weight goals. Reducing total fat intake without increasing carbohydrate or protein intake is an effective way to reduce body weight. Diabetics can include sucrose as part of their carbohydrate intake. The belief that diabetics should avoid sucrose in favor of complex carbohydrates is unfounded. Excessive consumption of soft drinks or sweets can, however, adversely affect a diabetic's cholesterol level. The recommendations for dietary fiber are the same for people with or without diabetes. Diabetics should consider a soluble fiber supplement before prescribing lipid-lowering medication. Keywords Diabetes; Diet; Nutrition; Fat, dietary; Carbohydrate. Data Source MDX Health Digest, Copyright by Medical Data Exchange (MDX). Entry Month 9701.
Copyright 1997 Medical Data Exchange. All rights reserved.
No part of the contents of MDX Health Digest database may be reproduced in any form without written permission from Medical Data Exchange.
Revised 1 April 1997