Thank you FreelanceReinh! How foolish of me. Got it this time. Thanks again! ... View more

Hello ksharp, thanks! I did assume that would be the case and ran the code again adding the interaction terms but got this error. proc logistic data = NEDS.neds_2016_pneumonia_recat; 231 class died_visit (ref = "0") pay1recat (ref = "3") hosp_controlrecat (ref = "4") 231! hosp_urcat4recat (ref = "1") hosp_ur_teach (ref = "0") hosp_traumarecat (ref = "0") / param = 231! ref; 232 model died_visit = pay1recat hosp_controlrecat pay1recat*hosp_controlrecat hosp_urcat4recat 232! pay1recat*hosp_urcat4recat hosp_ur_teach pay1recat*hosp_ur_teach hosp_traumarecat 232! pay1recat*hosp_traumarecat / link = glogit; 233 slice pay1recat*hosp_controlrecat/sliceby(pay1recat='3') diff oddsratio cl; 234 slice pay1recat*hosp_controlrecat/sliceby(pay1recat='2') diff oddsratio cl; 235 slice pay1recat*hosp_controlrecat/sliceby(pay1recat='1') diff oddsratio cl; 236 slice pay1recat*hosp_controlrecat/sliceby(hosp_controlrecat='1') diff oddsratio cl; 237 slice pay1recat*hosp_controlrecat/sliceby(hosp_controlrecat='2') diff oddsratio cl; 238 slice pay1recat*hosp_controlrecat/sliceby(hosp_controlrecat='3') diff oddsratio cl; 239 slice pay1recat*hosp_controlrecat/sliceby(hosp_controlrecat='4') diff oddsratio cl; 240 slice pay1recat*hosp_urcat4recat/sliceby(pay1recat='3') diff oddsratio cl; 241 slice pay1recat*hosp_urcat4recat/sliceby(pay1recat='2') diff oddsratio cl; 242 slice pay1recat*hosp_urcat4recat/sliceby(pay1recat='1') diff oddsratio cl; 243 slice pay1recat*hosp_urcat4recat/sliceby(hosp_urcat4recat='1') diff oddsratio cl; 244 slice pay1recat*hosp_urcat4recat/sliceby(hosp_urcat4recat='2') diff oddsratio cl; 245 slice pay1recat*hosp_ur_teach/sliceby(pay1recat='3') diff oddsratio cl; 246 slice pay1recat*hosp_ur_teach/sliceby(pay1recat='2') diff oddsratio cl; NOTE: PROCEDURE LOGISTIC used (Total process time): real time 0.00 seconds cpu time 0.00 seconds NOTE: The SAS System stopped processing this step because of errors. 247 slice pay1recat*hosp_ur_teach/sliceby(pay1recat='1') diff oddsratio cl; 248 slice pay1recat*hosp_ur_teach/sliceby(hosp_ur_teach='0') diff oddsratio cl; 249 slice pay1recat*hosp_ur_teach/sliceby(hosp_ur_teach='1') diff oddsratio cl; 250 slice pay1recat*hosp_ur_teach/sliceby(hosp_ur_teach='2') diff oddsratio cl 251 slice pay1recat*hosp_traumarecat/sliceby(pay1recat='3') diff oddsratio cl; ----- 22 76 ERROR 22-322: Syntax error, expecting one of the following: ;, ADJ, ADJDFE, ADJUST, ADJUSTMENT, ALPHA, AT, BYLEVEL, CHISQ, CL, CORR, COV, DF, DIFF, DIFFS, E, EPSILON, EST, EXP, ILINK, JOINT, LINES, LINESTABLE, MEANS, NOF, NOMEANS, OBSMARGINS, ODDSRATIO, ODDSRATIOS, OR, PDIFF, PLOT, PLOTS, SEED, SIMPLE, SINGULAR, SLICEBY, STEPDOWN, TDIFF. ERROR 76-322: Syntax error, statement will be ignored. 252 slice pay1recat*hosp_traumarecat/sliceby(pay1recat='2') diff oddsratio cl; 253 slice pay1recat*hosp_traumarecat/sliceby(pay1recat='1') diff oddsratio cl; 254 slice pay1recat*hosp_traumarecat/sliceby(hosp_traumarecat='0') diff oddsratio cl; 255 slice pay1recat*hosp_traumarecat/sliceby(hosp_traumarecat='1') diff oddsratio cl; 256 slice pay1recat*hosp_traumarecat/sliceby(hosp_traumarecat='2') diff oddsratio cl; 257 slice pay1recat*hosp_traumarecat/sliceby(hosp_traumarecat='3') diff oddsratio cl; 258 run;   ... View more

Thanks much StatDave! ... View more

Thanks again Koen! ... View more

Thank you sbxkoenk! ... View more

Thank you very much StatDave! I will apply the steps you suggested and revert. Thanks! ... View more

Thank you very much Reeza! I will do as advised and revert. ... View more

Hi Reeza, YEs, my data does have missing values. When I run the proc freq, some categorical variables show 12,956 missing values while others show 13,192 missing values. ... View more

Okay, thank you PaigeMiller! Appreciate your time. ... View more

Her you go. Thanks! 806 proc logistic data=NRD.nrd_2016_amirecat_readmit_only; 807 class aweekend (ref = "0") aprdrg_risk_mortality (ref = "1") aprdrg_severity (ref = "1") died (ref = "0") elective (ref = "0") female (ref = 807! "0") pay1recat (ref = "1") pl_NCHSrecat (ref = "1") zipinc_qrtl (ref = "1") hosp_bedsize (ref = "1") H_contrl (ref = "1") hosp_urcat4recat 807! (ref = "1") hosp_ur_teach (ref = "0") / param = ref; 808 model readmit 809 (event="1") = pay1recat age totchg readmitchg aweekend died dispuniform elective female los i10_ndx i10_npr pl_nchsrecat zipinc_qrtl 809! hosp_bedsize h_contrl hosp_urcat4recat hosp_ur_teach aprdrg_risk_mortality aprdrg_severity; 810 run; ERROR: All observations have the same response. No statistics are computed. NOTE: The SAS System stopped processing this step because of errors. NOTE: There were 313178 observations read from the data set NRD.NRD_2016_AMIRECAT_READMIT_ONLY. NOTE: PROCEDURE LOGISTIC used (Total process time): real time 0.27 seconds cpu time 0.28 seconds Sorry I cannot share any data as I am bound by the DUA I have signed with HCUP. ... View more

Hello and thank you for your reply. My data has several variables with different responses so I don't understand how this issue can crop up. When I am running the proc logistic program using the DV and the primary IV, it works. It is only when I add other covariates that this error happens. ... View more

Hello and thank you for your reply. My data has several variables with different responses so I don't understand how this issue can crop up. When I am running the proc logistic program using the DV and the primary IV, it works. It is only when I add other covariates that this error happens. ... View more