Table 4.

Topics extracted by LDA on things patients want to prevent prior to surgery and 6 months after surgery

Topic 1		Topic 2		Topic 3		Topic 4		Topic 5		Topic 6		Topic 7
Word	Prob.	Word	Prob.	Word	Prob.	Word	Prob.	Word	Prob.	Word	Prob.	Word	Prob.
Featured words: prior to surgery (n = 104 documents, vocabulary size = 434)
Loss	0.0203	Want	0.0276	Surgery	0.0596	Death	0.0525	Effects	0.0171	Surgery	0.0229	Cancer	0.0806
Bladder	0.0203	Going	0.0188	Complications	0.0328	Falling	0.0231	Operation	0.0171	Dying	0.0229	Cancer recurrence	0.0366
Bag	0.0203	Operation	0.0100	Complications-surgery	0.0222	Life	0.0158	Effects-operation	0.0171	Want	0.0156	Recurrence	0.0366
Having	0.0138	Medical	0.0100	Want	0.0168	Want	0.0158	Depression	0.0171	Sure	0.0156	Coming	0.0166
Loss bladder	0.0074	People	0.0100	Long	0.0115	Prevent	0.0084	Immobility	0.0171	Make	0.0156	Cancer coming	0.0166
Cancer spreading	0.0074	Life	0.0100	Knee	0.0115	Issues	0.0084	Sickness	0.0021	Dependent	0.0156	Cancer spreading	0.0126
Spreading	0.0074	Operation-going	0.0100	Function	0.0115	Health	0.0084	Illness	0.0021	Make-sure	0.0156	Spreading	0.0126
Long	0.0074	Compared	0.0100	Infection	0.0115	Health issues	0.0084	Death	0.0021	Cancer	0.0156	Prevent	0.0086
Pain	0.0074	Change-choice	0.0100	Recurrence	0.0115	Stress	0.0084	Surgery	0.0021	Continue	0.0083	Getting	0.0086
Surgery loss	0.0074	Choice-compared	0.0100	Illness	0.0115	Surgery	0.0084	Cancer	0.0021	Bladder cancer	0.0083	Avoid	0.0086
Featured words: After surgery (n = 211 documents, vocabulary size = 825)
Avoid	0.019	Getting	0.044	Want	0.016	Avoid	0.028	Cancer	0.114	Illness	0.019	Wan	0.026
Getting	0.019	Cancer	0.033	Death	0.012	Accidents	0.013	Recurrence	0.075	Having	0.016	Avoid	0.017
Sick	0.017	Prevent	0.022	Problem	0.009	Going	0.013	Cancer recurrence	0.055	Negative	0.015	Dying	0.014
Leakage	0.017	Cancer coming	0.017	Night	0.009	Like	0.010	Avoid	0.031	Prevent	0.014	Old	0.010
Going	0.014	Coming	0.017	Problems complaint	0.009	Prevent	0.010	Prevent	0.020	Prevent having	0.011	Relapse	0.010
Getting sick	0.014	Sick	0.015	Concerned-problems	0.009	Avoid going	0.010	Avoid cancer	0.015	Illness-negative	0.011	Years	0.010
Health	0.014	Getting sick	0.015	Concerned	0.009	People	0.007	Weight	0.012	Family	0.008	Years old	0.010
Things	0.014	Future	0.013	Complaint	0.009	IU	0.007	Having cancer	0.011	Happening	0.008	Getting	0.010
Prevent	0.012	Sickness	0.010	Incontinence	0.009	Leakage	0.007	Recurrence cancer	0.010	Exhaustion	0.008	Dying-years	0.007
Prevent getting	0.010	Getting cancer	0.010	Incontinence-night	0.009	Know	0.007	Having	0.009	Ridden exhaustion	0.008	Avoid relapse	0.007