develop a demographic data analysis report system by sas ... · • submit runsas1.sas to do the...

Develop A Demographic Data Analysis Report System By SAS® and Visual Basic

Richard Zhou, Johnson & Johnson Pharmaceutical Research and Development, L.L.C

ABSTRACT This paper describes how to use SAS plus Visual Basic software to develop an analysis report system, using clinical demographic data as the analysis data. The system consists of general statistical analysis processes, output reports which include three parts: (1) Statistical Summary (a text RTF file), (2) Analysis Graphs (a HTM file with drill-down information) and (3) Data Listings (an Excel file with the option of multiple worksheets). All process functions are integrated and located in one working window. The system tool is simple, efficient and powerful. Moreover, because this tool can be built into an executable file (.exe), it is user-friendly even to those who do not have SAS experience. INTRODUCTION As we know, SAS is a powerful tool that can perform many statistical analysis processes and generate reports (including text or graphs). Likewise, the Visual Basic (VB) software is also a useful tool in that it builds a user-friendly window environment, in which a user can organize, manage and operate a variety of tasks easily. To take advantage of the benefits of each software, we can combine SAS and Visual Basic to develop a tool for a data analysis report system. It will be very practical in processing regular analysis for data in a standard format. This paper describes an attempt at using this system for the above purposes. We will use VB to design a working window with the following functions:

• Access and view the specified input data. • Submit RunSAS1.sas to do the expected statistical analyses and generate an output text report file for

selected variables; view the report file. • Submit RunSAS2.sas to do graphic analysis and generate a graph file for selected variables; view the graph

file. • Submit RunSAS3.sas to generate an Excel file to list all subject data by a selected sorting variable, view

those work sheets. Clinical demographic data structures and analysis procedures are mostly very similar. To demonstrate, we will use some simple examples to introduce the working method of this tool. DESIGN OF THE WORKING WINDOW The desired working window is named “ShowDemog”. It contains eight main sections. The function for each section is listed in the following table:

Section Label Function 1 Data Folder To select the input data folder (path). 2 Data Name To select the input (demographic) data set 3 View Data To use SAS Viewer to look at the input data 4 Output Folder To specify the folder for output report files 5 Statistic

Summary To submit the program RunSAS1 to get statistical analysis summary report for selected variables

6 Graphic Analysis To submit the program RunSAS2 to get graphic analysis for selected variables

7 Data Listing To submit the program RunSAS3 to get an Excel file for subject listings by selected sorting variable

8 Exit To exit the working window Section 5 contains: (1) list of character variable(s) to be analyzed; (2) list of numerical variable(s) to be analyzed; (3) submit RunSAS1.sas; (4) view output results. Section 6 contains: (1) specify the variable to be analyzed; (2) specify the grouping variable; (3) specify graph type; (4) submit RunSAS2.sas; (5) view the graph file. Section 7 contains: (1) specify the group variable to be sorted; (2) submit RunSAS3.sas; (3) view generated Excel data file.

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Pharmaceuticals, Health Care, and Life SciencesNESUG 2008

The working window is shown below:

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Detail in each sectioin the following: SECTION 1: DATA FOName of the Box: DProperty: DriveListBFunction: To select

SECTION 2: DATA NName of the Box: FProperty: FileListBoFunction: To select

SECTION 3: VIEW DAName of the Box: SProperty: CommandFunction: To use SAVB Code: Private Sub SASv Dim SASview A Dim folder As

Dim dsn As St Dim fddsn As folder = File

dsn = File1.F fddsn = folde Set SASview = SASview.Submi SASview.Submi

End Sub


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Figure 1: The

n, such as box names, properties

LDER ir1 ox

the input data folder (path).

AME ile1 x the input (demographic) data set.

TA ASView Button S Viewer to look at the input data

iew_Click() s Object String ring String

1.Path ileName r + "\" + dsn

CreateObject("SAS.Applicatit ("x 'cd C:\Program Files\St ("x 'sv.exe " & fddsn & "

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working window

and functions in Visual Basic, VB and SA

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on") AS 9.1.3\SAS System Viewer\9.1 '; '; ")

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S code are described

")

Example:

(1) Select “C:\Project1\SAS\Data” for input data folder. (2) Select “demog.sas7bdat” for input data set name. (3) Click the box “View Data” then the screen will appear as below

Figure 2: View input data

SECTION 4: OUTPUT FOLDER Name of the Box: TxtOutdir Property: TextBox Function: To specify the folder for output report files.

SECTION 5: STATISTICAL SUMMARY Section 5.1 : Character Variables

Name of the Box: TxtCharVar Property: TextBox Function: To input the character variable(s) to be analyzed

Section 5.2 : Numerical Variables Name of the Box: TxtNumVar Property: TextBox Function: To input the numerical variable(s) to be analyzed

Section 5.3 : RunSAS1 Name of the Box: RunSAS1 Property: CommandButton Function: To run RunSAS1.sas to get a statistical summary VB Code: Private Sub RunSAS1_Click() Dim RunSAS1 As Object Dim folder As String Dim dsn As String Dim outdir As String Dim charvar As String Dim numvar As String outdir = TxtOutdir.Text charvar = TxtCharVar.Text numvar = TxtNumVar.Text dsn = File1.FileName folder = File1.Path If Len(dsn) > 0 Then pos = InStr(dsn, ".") dsn = Left(dsn, pos - 1) Set RunSAS1 = CreateObject("SAS.Application") RunSAS1.Submit (" %let dir=" & folder & " ;") RunSAS1.Submit (" %let dsn=" & dsn & "; ") RunSAS1.Submit (" %let outdir=" & outdir & " ; ") RunSAS1.Submit (" %let charvar=" & charvar & " ; ") RunSAS1.Submit (" %let numvar=" & numvar & " ; ")

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RunSAS1.Submit (" %inc 'C:\Project1\sas\RunSAS1.sas'; ") RunSAS1.Visible = False

RunSAS1.quit MsgBox "RunSAS1 Completed" Else MsgBox "No Data file selected" End If End Sub

SAS Code in RunSAS1.sas: Upon clicking the box RunSAS1, Visual Basic will call RunSAS1.sas to run. The function of RunSAS1 is to do general statistic analysis for input character and numerical variables, and to generate a statistical summary report file: RunSAS1.rtf. Statistical methods in the analysis, and the output contents and format are dependent on how the user preset them. The SAS code in this demo example is simple: %macro runsas1; libname dirname "&dir";

ods rtf file="&outdir.\RunSAS1.rtf";

proc sort data=dirname.&dsn out=testds; by TREAT; run;

title1 "Summary of Demographic Data Analysis"; %if "&charvar"^=" " %then %do;

proc freq data=testds; tables &charvar /list;

run; %end; %if "&numvar"^=" " %then %do;

proc means data=testds n mean max min range std maxdec=1; var &numvar;

by TREAT; run;

%end; ods rtf close;

%mend runsas1; %runsas1;

Section 5.4 : View Summary Name of the Box: ViewSummary Property: CommandButton Function: To view the statistical summary report (RunSAS1.rtf) VB Code:

Private Sub ViewSummary_Click() Dim outdir As String outdir = TxtOutdir.Text Dim OpenRTF As Object Set OpenRTF = CreateObject("Word.Application") OpenRTF.Visible = True OpenRTF.Documents.open " " & outdir & "\RunSAS1.rtf"

End Sub

Example: (1) Select “C:\Project1\SAS\Data” for input data folder. (2) Select “demog.sas7bdat” for input data set name. (3) Type “C:\Test” for input data folder. (4) Type “TREAT SEX RACE REGION” for analysis character variables (5) Type “AGE WEIGHTKG” for analysis numerical variables (6) Click the box “RunSAS1”. After a while, you will see this window:


Figure 3: The message after submitting “RunSAS1”

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(7) Click “OK”, then click the box “View Summary”. You will see “Summary of Demographic Data Analysis” as below:

Figure 4: Click button “View Summary” to look the summary reports

SECTION 6: GRAPHIC ANALYSIS

Section 6.1 : Analysis Variable Name of the Box: TxtGvar Property: TextBox Function: To specify the variable to be analyzed

Section 6.2 : Group Variable Name of the Box: TxtGby Property: TextBox Function: To specify the grouping variable

Section 6.3 : Graph Type Name of the Box: ListGtype Property: ListtBox Function: To specify the type of graph

Section 6.4 : RunSAS2 Name of the Box: RunSAS2 Property: CommandButton Function: To run RunSAS2.sas to get graphic analysis VB Code:

Private Sub RunSAS2_Click() Dim RunSAS2 As Object Dim folder As String Dim dsn As String Dim outdir As String Dim gvar As String Dim gby As String Dim gtype As String

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outdir = TxtOutdir.Text gvar = TxtGvar.Text gby = TxtGby.Text gtype = ListGtype dsn = File1.FileName folder = File1.Path If Len(dsn) > 0 Then pos = InStr(dsn, ".") dsn = Left(dsn, pos - 1) Set RunSAS2 = CreateObject("SAS.Application") RunSAS2.Submit (" %let dir=" & folder & " ;") RnSAS2.Submit (" %let dsn=" & dsn & "; ") RunSAS2.Submit (" %let outdir=" & outdir & " ; ") RunSAS2.Submit (" %let gvar=" & gvar & " ; ") RunSAS2.Submit (" %let gby =" & gby & " ; ") RunSAS2.Submit (" %let gtype=" & gtype & " ; ") RunSAS2.Submit ("options noxwait;") RunSAS2.Submit ("x 'del " & outdir & "\*.gif';") RunSAS2.Submit (" %inc 'C:\Project1\sas\RunSAS2.sas'; ")

RunSAS2.Visible = False MsgBox "RunSAS2 Completed" Else MsgBox "No Data file selected" End If End Sub

SAS Code in RunSAS2.sas: On clicking the RunSAS2 button, Visual Basic will call RunSAS2.sas to run. The function of RunSAS2 is to do graphic analysis for input variables and generate a graph file: RunSAS2.htm. There are many choices of graphic styles and output fie formats in SAS Graph. The following SAS code is an example in which we designed two options for “Group Variable”: entering a variable or leaving it blank; and two options for “Graph Type”: BAR or PIE; the output file is in html format: %macro mplot; *****************************************************; ** Part 1: Load Input Data, Assign Macro Variables **; *****************************************************; libname dirname "&dir"; libname outdir "&outdir"; ** 1.1 Load analysis data **; data testds; set dirname.&dsn; run; proc contents data=testds out=lb(keep=name label) noprint; run; data _null_; set lb; if name="&gvar" then call symput ('gvarlb',trim(left(label))); run; ** 1.2 Find cases for selected analysis variable (&gvar.) **; ** 1.3 Find cases for selected group variable (&gby.) **; proc freq data=testds noprint; table &gvar./out=out1; %if &gby^= %then %do; table &gby./out=out2; %end; run; ** 1.4 Assign macro variable values for such cases **; data _null_; set out1;

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call symput('GVAL'||trim(left(_n_)),&gvar.); call symput('TOTAL',trim(left(_n_))); run; %if &gby^= %then %do; data _null_; set out2; call symput('GBY'||trim(left(_n_)),&gby.); call symput('TOTAL2',trim(left(_n_))); run; %end;

*****************************************************************; ** Part 2: Create A RTF Link File for Drill Down Information **; ** (Listing N, Mean, Min, Max, Range and Std Dev. of **; ** Age, Weight and Study Days) **; ** Options: With or without group variable (&gby) **; *****************************************************************; ** 2.1 Prepare data **; data testds2; set testds; %if &gby^= %then %do; GraphVar=&gvar||', '||&gby; %do i=1 %to &total; if &gvar ="&&gval&i." then do; %do j=1 %to &total2; if &gby ="&&gby&j." then do; %let k=%eval((&i-1)*&total2+&j); rpt="href='DrillDowns.rtf#g&k'"; end; %end; end; %end; label GraphVar="&gvarlb. Group"; %end; %else %do; GraphVar=&gvar; %do i=1 %to &total; if &gvar ="&&gval&i." then do; rpt="href='DrillDowns.rtf#g&i'"; end; %end; label GraphVar="&gvarlb"; %end; run; ** 2.2 Create RTF file **; ods rtf body="&outdir\DrillDowns.rtf" ANCHOR='g1'; title "Subject's Age, Weight and StudyDays in Each Treatment Group"; proc sort data=testds2; by GraphVar; run; proc means data=testds2 n mean max min range std maxdec=0; var age weightkg studyday ; by GraphVar; run;

quit; ods rtf close;

*****************************************************; ** Part 3: Count frequencies for analysis variable **; ** and create graph data (testds3) **; *****************************************************;

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proc freq data=testds2 noprint; tables GraphVar*rpt/out=testds3; run; *************************************; ** Part 4: Create A HTM Graph File **; *************************************; ods html body="&outdir\RunSAS2.htm" gpath="&outdir.";

** 4.1 IF GraphType=PIE **; %if %upcase(&gtype)=PIE %then %do; GOPTIONS DEVICE=GIF GSFMODE=REPLACE XPIXELS=480 YPIXELS=360 FTEXT=SWISS HTEXT=1.2; proc gchart data= testds3; pie GraphVar / sumvar=count percent=arrow slice=arrow value=none HTML=rpt noheading ; pattern1 v=s c=blue; pattern2 v=s c=cyan; pattern3 v=s c=green; pattern4 v=s c=magenta; pattern5 v=s c=red; pattern6 v=s c=yellow; pattern7 v=s c=olive; pattern8 v=s c=brown; title h=6 pct 'Pie Chart: Population of Subjects'; run; %end; ** 4.2 IF GraphType=BAR **; %if %upcase(&gtype)=BAR %then %do; GOPTIONS DEVICE=ACTIVEX GSFMODE=REPLACE XPIXELS=560 YPIXELS=480 FTEXT=SWISS HTEXT=1.2;

proc gchart data= testds3; vbar GraphVar / sumvar=count HTML=rpt; pattern c=blue;

title 'Bar Chart: Population of Subjects'; run; %end; quit; ods HTML close; %mend mplot; %mplot;

Section 6.4 : View Graph

Name of the Box: ViewGraph Property: CommandButton Function: To view graphic analysis (RunSAS2.htm) VB Code: Private Sub ViewGraph_Click() Dim cmd As String Dim outdir As String outdir = TxtOutdir.Text

cmd = "C:\Program Files\Internet Explorer\IEXPLORE.EXE " & outdir &

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"\RunSAS2.htm" Call Shell(cmd, 1) End Sub

Example 1: (1) Select “C:\Project1\SAS\Data” for input data folder. (2) Select “demog.sas7bdat” for input data set name. (3) Type “C:\Test” for output file folder. (4) In the frame “Graph Analysis” (see figure 5),

(a) Type “TREAT” for analysis character variables (b) Type “SEX” for group variables (c) Select PIE as Graph Type (d) Click the box “RunSAS2”. After a while, you will get the message “RunSAS2 Completed”, then click “OK”. (e) Click the box “View Graph” to see graph file RunSAS2.htm as shown in Figure 6.


Figure 5: Frame “GraphAnalysis”

Test: Move mouse to here and left-click, you will get the “Drill Down” Information for “Treatment B, MALE” (see Figure 7)

Figure 6: Example 1, Pie Chart

Figure 7: “Drill Down” Information

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Example 2: (1) Change the selection of Graph Type (see figure 5) from PIE in Example 1 to BAR. (2) Click the box “RunSAS2”. After a while, you will get the message “RunSAS2 Completed”, then click “OK”. (3) Click the box “View Graph” to see graph file RunSAS2.htm as shown in Figure 8. (4) Move the mouse to any bar chart to get actual counts shown in a message box.

Test: Move mouse to here and left-click, you will get the “Drill Down” Information for “Treatment B, MALE” (see Figure 7)

Figure 8: Example 2, Bar Chart

SECTION 7: DATA LISTINGS Section 7.1 : Select “Sort By” Variable

Name of the Box: LstByvar Property: ListBox Function: To select the sort variable

Section 7.2 : Run RunSAS3 Name of the Box: RunSAS3

Property: CommandButton Function: To run RunSAS3.sas to get data listings

VB Code: Private Sub RunSAS3_Click() Dim RunSAS3 As Object Dim folder As String Dim dsn As String Dim outdir As String Dim byvar As String outdir = TxtOutdir.Text byvar = LstByvar dsn = File1.FileName folder = File1.Path If Len(dsn) > 0 Then

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pos = InStr(dsn, ".") dsn = Left(dsn, pos - 1) Set RunSAS3 = CreateObject("SAS.Application") RunSAS3.Submit (" %let dir=" & folder & " ;") RunSAS3.Submit (" %let dsn=" & dsn & "; ") RunSAS3.Submit (" %let outdir=" & outdir & " ; ") RunSAS3.Submit (" %let byvar=" & byvar & " ; ") RunSAS3.Submit ("options noxwait;") RunSAS3.Submit ("x 'del " & outdir & "\RunSAS3.xls';") RunSAS3.Submit (" %inc 'C:\Project1\sas\RunSAS3.sas'; ") RunSAS3.Visible = False RunSAS3.quit MsgBox "RunSAS3 Completed"

Else MsgBox "No Data file selected" End If

End Sub

SAS Code in RunSAS3.sas: Upon clicking the RunSAS3 button, Visual Basic will call RunSAS3.sas to run. It will generate the Excel file RunSAS3.xls with multiple sheets (if the selected sort character variable has at least two cases of values) to list subject data. RTF or LST are usually for subjects listings file formats. These two file formats are easily generated by SAS. Here we use a different way – generating an Excel file with multiple data sheets to show subject listing data. It is helpful in organizing data, making it easy and quick to look at the listing data information. The SAS codes are: libname dirname "&dir"; options noxwait replace; %let xlsfile=RunSAS3.xls; data testds; set dirname.&dsn; run; proc sort data=testds out=varlst(keep=&byvar) nodupkey; by &byvar; run; sdata varlst; set varlst; ds=compress(propcase(&byvar)); call symput('N',compress(left(_N_))); call symput('ds'||LEFT(_N_), ds); call symput('byvar'||LEFT(_N_), &byvar); run;

%macro setds; %do i=1 %to &N; data &&ds&i; informat SUBJID TREAT &byvar REGION RACE SEX; set testds; if &byvar="&&byvar&i"; run; proc sort data=&&ds&i; by subjid; run; %end; %mend setds; %setds;

** Create Excel File **; libname WrkBk EXCEL "&outdir.\&xlsfile" ver=2002;

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%macro mdxls; %do i=1 %to &n; data WrkBk.&&ds&i; set &&ds&i; run; %end; libname WrkBk clear; quit; %mend mdxls; %mdxls;

Section 7.3 : View Listing Sheets

Name of the Box: ViewListing Property: CommandButton Function: To view listing sheets (RunSAS3.xls) VB Code: Private Sub ViewListing_Click() Dim outdir As String outdir = TxtOutdir.Text Dim OpenExcel As Object Set OpenExcel = CreateObject("Excel.Application") OpenExcel.Visible = True OpenExcel.Workbooks.open outdir & "\RunSAS3.xls"

End Sub Example : (1) Select “C:\Project1\SAS\Data” for input data folder. (2) Select “demog.sas7bdat” for input data set name. (3) Type “C:\Test” for output file folder. (4) In the frame “Data Listing” (see figure 9),

(a) Select “RACE” as “Sort By Variable” (b) Click the box “RunSAS3”. After a while, you will get the message “RunSAS3 Completed”, then click “OK” (c) Click the box “View Listing Sheets” to see file RunSAS3.xls as shown in Figure10.

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Figure 9: Frame “Data Listing”

Figure 10: Listing of Subjects Sorted By Race

ECTION 8: EXIT ame of the Box: Exit roperty: CommandButton unction: To Exit working window. B Code: rivate Sub Exit_Click() Unload Me nd Sub

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RESULT OF TEST The results of the tests were positive. All functions of the boxes in the working window have successfully met our expectations. The user can execute any changes or settings in the listed field choices without modifying any SAS or VB code. The tool handles the communication to SAS, MS Word, MS Excel and HTML files, and works very well. Also, since this tool can be built into an executable (.exe) file, it is very easy and simple to use. CONCLUSION This is a successful attempt. The tool has combined advantages from both SAS and Visual Basic. It can load powerful statistical analysis and reporting software (SAS), and can work with the window environment to perform all task management and operations visually. With the strategy of the tool, we can customize (add more or change) any options and functions upon it as needed. We could also develop similar tools for regular analysis and reports for other standard format data, such as adverse events, disposure, patient profile, etc.. REFERENCES [1] Lauren E. Haworth ,“Output Delivery System”, page 250-258. [2] SUGI 30, paper 044-30, “A Microsoft Access GUI for SAS Automation”, by Rubin Nan and David Mullins. [3] 2005 Pharmaceutical users Software Exchange Conference, paper AS11, “Using VBA and Base SAS to Get Data

from SAS to Excel Without Data Integrity Issues”, by Timothy Adlington. [4] SUGI 27, paper 164-27, “Using Visual Basic to Customize a Set of SAS reports”, by Kevin McGowan. [5] “Quick Tip: Building Drill-down SAS Applications”, by Kirk Paul Lafler, http://www.sconsig.com/sastips/building_drill-

down_sas_applications.pdf.

CONTACT INFORMATION Your comments and questions are valued and encouraged. Contact the author at: Richard Zhou Johnson & Johnson Pharmaceutical Research and Development, L.L.C. 920 Route 202 PO Box 300 Raritan, NJ 08869 Email: [email protected] SAS and all other SAS Institute Inc. product or service names are registered trademarks or trademarks of SAS Institute Inc. in the USA and other countries. ® indicates USA registration. Other brand and product names are trademarks of their respective companies.

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