Table 1 Comparison of depression symptoms between OAB and controls (adjusted for age and sex), *p < 0.05

HADS-D composite scores: (mean ± SD)

5.3 ± 3.9

2.8 ± 3.9

0.004*

Individual items on the HADS-D scale: (higher score is worse)

I still enjoy the things I used to enjoy:

0.88 ± 0.86

0.47 ± 0.90

0.044*

 0 = definite as much

 1 = not quite so much

 2 = only a little

 3 = hardly at all

I can laugh and see the funny side of things:

0.45 ± 0.58

0.17 ± 0.46

0.025*

 0 = as much as I always could

 1 = not quite so much now

 2 = definite not so much now

 3 = not at all

I feel cheerful:

0.59 ± 0.64

0.43 ± 0.73

0.21

 3 = not at all

 2 = not often

 1 = sometimes

 0 = most of the time

I feel as if I am slowed down:

1.4 ± 0.90

0.55 ± 0.57

<0.001*

 3 = nearly all the time

 2 = very often

 1 = sometimes

 0 = not at all

I have lost interest in my appearance:

0.76 ± 0.91

0.57 ± 0.86

0.16

 3 = definitely

 2 = I don’t take as much care as I should

 1 = I may not take quite as much care

 0 = I take just as much care as ever

I look forward with enjoyment to things:

0.75 ± 087

0.33 ± 0.66

0.03*

 0 = as much as I ever did

 1 = rather less than I used to

 2 = definitely less than I used to

 3 = hardly at all

I can enjoy a good book or radio or Tv program:

0.41 ± 0.67

0.23 ± 0.63

0.22

 0 = often

 1 = sometimes

 2 = not often

 3 = very seldom

% with a HADS-D score ≥8 (presence of depression):

27.5 %

13.8 %

0.158

% with a HADS-D score ≥11 (moderate to severe depression):

11.8 %

10.3 %

0.744

% with medical history of depression:

32 %

17 %

0.196