Only rows that are correct are used for calculating the sf12 t scores. However, these updates are proprietary, unlike the original sf12. Assessment of psychometric properties of the korean sf12 v2. This matches the results described in the sf12 scoring manual, which in addition to population. Compared to the mos sf 12, the veterans sf 12 adds about 5% more precision to the pcs and mcs. The test consists of 36 questions and requires 10 minutes to administer. The software uses all the 12 items to produce scores for the pcs 12 and the mcs 12 and applies a normbased scoring algorithm empirically derived from the data of a us general population survey.
Compared to the mos sf12, the veterans sf12 adds about 5% more precision to the pcs and mcs. The sf12 and sf12v2 allows scoring of the pcs and the mcs, which have been found to strongly agree with the sf36based pcs and mcs scores. This study derives new summary scores based directly on sf12v2. The scores may be reported as zscores difference compared to the population average, measured in standard deviations. Sf certified scoring is available in several versions, including. The 115item apssf is a multidimensional measure of psychopathology and personality derived from the aps. It has been recommended that the usderived summary scores, that assume a mean of 50 and a standard deviation sd of 10, be used in order to. Cronbach alpha internal consistency reliability estimates for. The resulting shortform survey instrument provides a solution to the problem faced by many investigators who must restrict survey length.
Because the shorter forms sf12 or sf8 depend on just one or two items in each scale as representation of a particular health concept, they produce a less precise measure than the full sf36. The sf 12 has a different scoring protocol to the sf 36. The 12 item shortform health survey sf 12, however, is a multipurpose, generic 12 item questionnaire developed from the sf 36 that is one of the most widely used health status evaluation tools. The sf12 was scored using the recommended medical outcomes study mos sas software program that creates two summary scores, mental health. The 12item short form health survey sf12 was developed for the medical outcomes study mos, a multiyear study of patients with chronic conditions. Therefore, the aim of our study was to evaluate the psychometric properties of the korean version of the sf12 v2 in the general population and to provide sf12 v2 domain scores according to the general characteristics of the study population. The module is made available under terms of the gpl v3.
Short form 36 health survey sf36 statistics solutions. The sf12 has a different scoring protocol to the sf36. A physical summary and a mental summary are included in the test scoring. Taking only two to three minutes to complete, the sf12v2 is a practical, reliable and valid measure of physical and mental health. The sf 12, which stands for shortform 12 question, is a brief inventory of selfreported mental and physical health. The sf12 is a multipurpose short form survey with 12 questions, all selected from the sf36 health survey ware, kosinski, and keller, 1996. The optum sf health surveys capture practical, reliable and valid information. Quality metrics, the owner of the sf12, no longer provides the scoring algorithm in order to foster the use of their scoring software for accuracy. The sf20 is a set of generic, coherent, and easily administered qualityoflife measures. We assessed the internal consistency, splithalf reliability and annual testretest. A generic, multipurpose shortform survey with 12 questions selected from the sf 36 health survey which, when combined, scored and weighted, results in two scales of mental and physical functioning and overall healthrelated quality of life. Interpreting the sf 12 the results for this report are based on the responses of 7,520 respondents in the 2001 utah health status survey hss. Deriving sf12v2 physical and mental health summary scores. The iranian version of 12item short form health survey.
The aim of this study was to validate the sf12 in iran. The confirm installation box appears right indicating that the installer is ready to install the. The sf12 is the abridged practical version of the 36item short form health survey sf36 that is developed as an applicable instrument for measuring healthrelated quality of life 1, 2. Pcs and mcs scores for the veterans sf12 are computed similarly to the mos sf12 see section 3 below. Purpose summary scores for the sf12, version 2 sf12v2 health status measure are based on scoring coefficients derived for version 1 of the sf36, despite changes in item wording and response scales and despite the fact that sf12 scales only contain a subset of sf36 items. Although differences in scores between different scoring systems for the sf 12 may be minor, clinicians and researchers should note the version of the sf 12 they are using. The original sf 36 stemmed from the medical outcome study, mos, which was conducted by the rand corporation. Scoring the rand 36item health survey is a twostep process. Use of the sf12 instrument for measuring the health of homeless.
In this edition of qm university, we tell the story of the sf health surveys. Normative data of the sf12 health survey with validation. The aim of this study was to validate the sf 12 in iran. Cronbach alpha internal consistency reliability estimates for the veterans sf 12 pcs and mcs are both 0. The sf12 measures physical and mental health by means of two summary scores. The sf12, which stands for shortform 12question, is a brief inventory of selfreported mental and physical health. Proceedings of the 22nd annual sas users group international conference. The 12item short form health survey sf12 as a shorter alternative of the sf36 is largely used in health outcomes surveys. The 12item medical outcomes study short form health. Scoring the sf 12 scoring the medical outcomes study sf 12. A generic, multipurpose shortform survey with 12 questions selected from the sf36 health survey which, when combined, scored and weighted, results in two scales of mental and physical functioning and overall healthrelated quality of life.
Differently from the classical sf12 and the rand12 models, brp12. The sf 20 is a set of generic, coherent, and easily administered qualityoflife measures. Assessing the reliability of the short form 12 sf12 health. Subsequent updates to the sf12 have been made that align the scores with more recent u. Interpreting the sf12 the results for this report are based on the responses of 7,520 respondents in the 2001 utah health status survey hss. The sf36v2, sf12v2 and sf8 health surveys measure the same eight health. Met behulp van deze gegevens kan worden bijgehouden hoe u. Conversely, the brp 12 scoring is based on a twofactor irt graded response model directly applied to the sf 12 items, where all items are allowed to load on both dimensions, much in the fashion of the sf 12 mcs 12, and the correlation between both dimensions is set to 0. The 12item shortform health survey sf12, however, is a multipurpose, generic 12item questionnaire developed from the sf36 that is one of the most widely used health status evaluation tools.
It is particularly useful in large population health surveys or. Mar 07, 2011 the software uses all the 12 items to produce scores for the pcs 12 and the mcs 12 and applies a normbased scoring algorithm empirically derived from the data of a us general population survey. The software uses all the 12 items to produce scores for the pcs12 and the mcs12 and applies a normbased scoring algorithm empirically derived from the data of a us general population survey. How to score version 2 of the sf12 health survey with a supplement documenting version 1 author. Measuring physical and mental health using the sf12. The main objective of this manual is to document and explain each step in the scoring of sf12v2 scales and summary measures using normbased scoring nbs algorithms. The iranian version of 12item short form health survey sf. This information will help you keep track of how you feel and how well you are able to do your usual activities. Also, i think there are differences in scoring for sf 12 and sf 12v2 so you need to ensure that you are scoring the right version. Answer every question by selecting the answer as indicated.
Ware, 2002, health assessment lab edition, unknown binding in english. How to score version 2 of the sf12 health survey with a. Didnt do work or other activities as carefully as usual. Ideal for use when time and circumstance necessitate a brief measure of psychopathology. There are 3 steps involved in calculating the sf 12 physical component summary pcs and mental component summary mcs scores. Check for missing or outofrange values for items 1122 sf12 portion of combined survey. The sf36 is a measure of health status and an abbreviated variant of it, the sf6d, is commonly used in health economics as a variable in the qualityadjusted life year calculation to determine the costeffectiveness of a health treatment. The united states population average pcs12 and mcs12 are both 50 points. The 12 item short form health survey sf 12 was developed for the medical outcomes study mos, a multiyear study of patients with chronic conditions. Although differences in scores between different scoring systems for the sf12 may be minor, clinicians and researchers should note the version of the sf12 they are using. The original sf36 stemmed from the medical outcome study, mos.
Designed specifically for our generic health surveys, this program assures the quality of. It is recommended that community surveys that measure physical and mental functioning using the sf 12 items generate summary scores using the rand 12 protocol in addition to the sf 12 approach. In general, researchers should be wary of using factor scores based on orthogonal rotation, which assumes that measures are uncorrelated. All items are scored so that a high score defines a more favorable health state. Mar 19, 20 in this edition of qm university, we tell the story of the sf health surveys.
If you want to specify a different disk drive and folder, click browse to select your preferred location. The sf 12 is a multipurpose short form survey with 12 questions, all selected from the sf 36 health survey ware, kosinski, and keller, 1996. A random sample of the general population aged 15 years and over living in tehran, iran completed the sf 12. The short form 36 health survey is a 36item, patientreported survey of patient health. Singleitem formats of both surveys have been developed for 1 tablets typically seven inch diameter screen size or larger and 2 handheld devices e. Two summary scores are reported from the sf12 a mental component score mcs12 and a physical component score pcs12. How to score the sf12 physical and mental health summary scales. The instrument contains eight subscales as original 36item questionnaire. Because the scoring method described here a simpler and more straightforward procedure differs from that of the mos sf 36, persons using this scoring method should refer to the instrument as rand 36item health survey 1.
Conversely, the brp12 scoring is based on a twofactor irt graded response model directly applied to the sf12 items, where all items are allowed to load on both dimensions, much in the fashion of the sf12 mcs12, and the correlation between both dimensions is set to 0. Also, i think there are differences in scoring for sf12 and sf12v2 so you need to ensure that you are scoring the right version. How to score version 2 of the sf12 health survey with a supplement documenting version 1 by john e. The sf 36 is a measure of health status and an abbreviated variant of it, the sf 6d, is commonly used in health economics as a variable in the qualityadjusted life year calculation to determine the costeffectiveness of a health treatment. Stata module to validate sf12 input and calculate sf12. How to score version 2 of the sf12r health survey with a. The percentages reflect the distribution of responses of the 6,1 survey respondents, weighted to reflect the age, ses, hispanic status, and geographic distribution of adults age 18 or over in utah.
Adolescent psychopathology scale short form aps sf par. Reliability was estimated using internal consistency and validity was assessed using known groups. In addition to providing much more uptodate norms for use in interpreting sf36 health survey scales and measures, this software assures the. Pcs and mcs scores for the veterans sf 12 are computed similarly to the mos sf 12 see section 3 below. The psychometric properties of the korean short form 12 health survey, version 2 sf 12 v2 have not been assessed in the general population. This module should be installed from within stata by typing ssc install sf12. It provides a comprehensive, psychometrically sound, and efficient way to measure health from the patients point of view by scoring standardized responses to standard questions. The sf 12 provides a shorter but still valid and reliable alternative to the sf 36 for use in large samples.
The optum sf12v2 health survey is a shorter version of the sf36v2 health survey that uses just 12 questions to measure functional health and wellbeing from the patients point of view. Addresses issues regarding school safety by assessing excessive anger. Free online sf12 score calculator sf12 orthotoolkit. First, precoded numeric values are recoded per the scoring key given in hays and sherbourne 1992. Assessment of psychometric properties of the korean sf12. L the 12 bar charts below have been constructed with the highest. The psychometric properties of the korean short form12 health survey, version 2 sf12 v2 have not been assessed in the general population. Sf12 health survey scoring demonstration this survey asks for your views about your health. Pros brevity, ease of scoring, high retest reliability. Secondary outcomes included the sf 12 physical health component score pcs, euroqol eq5d, geriatric depression score gds10, social activity, social support and morbidities. Stata module to validate sf12 input and calculate sf12 version 2 t scores, statistical software components s458125, boston college department of economics, revised 19 dec 2016.
The sf12 provides a shorter but still valid and reliable alternative to the sf36 for use in large samples. Scoring api the pro insight scoring libraries are installed on the companies server and the company writes applications to score. The short form 36 health survey sf 36 evaluates the functional health and wellbeing of patients. Ron hays, who worked with john ware at rand on developing the sf36, has some free scoring software on his website. The 0to100 scales can also be transformed into normbased scores which translate raw scores into. It was developed for the medical outcomes study mos, a multiyear study of patients with chronic conditions. However, these updates are proprietary, unlike the original sf 12. Check for missing or outofrange values for items 1122 sf 12 portion of combined survey.
How to score the sf12 physical and mental health summary scales ware, john e on. The mental component of the shortform 12 health survey. Sep 16, 2009 the 12 item short form health survey sf 12 as a shorter alternative of the sf 36 is largely used in health outcomes surveys. Can any of your send me the spss syntax for scoring the sf12. Subsequent updates to the sf 12 have been made that align the scores with more recent u. Oct 10, 2012 this short video demonstration is part of the qm university series. The sf12 health survey pcs and mcs scores the short form12 health survey measures generic health concepts relevant across age, disease, and treatment groups. This short video demonstration is part of the qm university series.
How to score the sf12 physical and mental health summary scales, 2nd edition. A random sample of the general population aged 15 years and over living in tehran, iran completed the sf12. During the past 4 weeks, were you limited in the kind of work you do or other regular activities as a result of any emotional problems such as feeling depressed or anxious. The mental component of the shortform 12 health survey sf. If you have any questions or feedback relating to the software or this video, please contact jim oconnor at joconnor. The 12item medical outcomes study short form health survey. Because the shorter forms sf 12 or sf 8 depend on just one or two items in each scale as representation of a particular health concept, they produce a less precise measure than the full sf 36. How to score version 2 of the sf12r health survey with. The sf 12 measures physical and mental health by means of two summary scores. Data from a populationbased study of 7485 participants in three cohorts aged 2024, 4044 and 6064 years were used to examine relationships among measures. Differently from the classical sf 12 and the rand 12 models, brp 12. There are 3 steps involved in calculating the sf12 physical component summary pcs and mental component summary mcs scores. For instance, it only takes 30 seconds to enter an sf36 questionnaire into merlin.
Therefore, the aim of our study was to evaluate the psychometric properties of the korean version of the sf 12 v2 in the general population and to provide sf 12 v2 domain scores according to the general characteristics of the study population. Sf12 how to score the sf12 physical and mental health summary scales. Scoring the sf12 scoring the medical outcomes study sf12. The sf36 includes a multiitem scale with 8 subscales. The effects of using different approaches to scoring the sf12 summary scales of physical and mental health were examined with a view to informing the design and interpretation of communitybased survey research.
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