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Table 1 Comparisons between the two OAB clusters, mean ± SD

From: Clustering of patients with overactive bladder syndrome

 

Urinary cluster

(n = 25, 52%)

Systemic cluster

(n = 23, 48%)

p-value

Demographics

 Age (mean ± SD)

53.8 ± 13.9

54.2 ± 10.0

0.84

 No. of females

16

19

0.20

Urinary symptoms: (mean ± SD)

 Urinary incontinence (ICIQ-UI, 0–21)^

10.7 ± 5.1

14.0 ± 4.1

0.028*

 Incontinence impact (IIQ-7, 0–28)

6.5 ± 7.4

11.7 ± 8.6

0.027*

 Overactive bladder (ICIQ-OAB, 0–16)^

8.8 ± 2.7

9.9 ± 2.6

0.20

 Overactive bladder symptom severity (OAB-q SS, 6–36)

58.5 ± 20.0

69.3 ± 22.4

0.11

Psychosocial

   

 Anxiety (HADS-A, 0–21)^

5.5 ± 4.1

9.5 ± 3.7

 < 0.001*

 Depression (HADS-D, 0–21)^

3.7 ± 3.5

6.9 ± 3.6

 < 0.001*

 Psychological stress (PSS, 0–40)^

12.9 ± 6.4

21.4 ± 7.0

 < 0.001*

 Somatic symptom burden (PSPS-Q, 0–59)^

7.5 ± 6.6

28.0 ± 7.6

 < 0.001*

 Childhood traumatic exposure (CTES, 0–42)^

5.4 ± 6.0

17.0 ± 11.6

 < 0.001*

 Death in family

2.1 ± 2.8

3.7 ± 3.2

0.070

 Parental upheaval

0.8 ± 1.8

2.7 ± 3.2

0.021*

 Sexual trauma

0.6 ± 1.9

3.1 ± 3.2

0.004*

 Victim of violence

0.6 ± 1.9

2.5 ± 3.2

0.017*

 Major illness

0.2 ± 0.8

2.4 ± 2.9

0.001*

 Other trauma

1.2 ± 2.4

2.6 ± 3.0

0.055

Quality of life

   

 Condition specific (OAB-q-HRQOL, 0–100, higher is worse)

40.3 ± 22.6

56.0 ± 26.9

0.045*

 Global QOL (SF-36, 0–100, lower is worse)

74.6 ± 17.8

43.7 ± 18.4

 < 0.001*

  1. *p < 0.05. ^ identifies variables that are used in the clustering algorithm