Table 3 Cases of orchidopexy stratified according to hospitals with and without a department for pediatric surgery prior to (2003–2008) and after (2010–2012) modification of the guideline, respectively; p-values indicate the difference of cases < 1 year (≤2 years) of age and all other cases. CI = 95-% confidence interval

2003 – 2008

<1 year

n = 68

n = 41

n = 27

p = .001 [1 %;6 %]

6 %

3 %

≥1 year

n = 1530

n = 619

n = 911

94 %

97 %

<2 years

n = 353

n = 192

n = 161

p < .001 [15 %;26 %]

29 %

17 %

≥2 years

n = 1245

n = 468

n = 777

71 %

83 %

2010 – 2012

n = 1553

n = 508

n = 1045

<1 year

n = 81

n = 50

n = 31

p < .001 [5 %;11 %]

10 %

3 %

≥1 year

n = 1472

n = 458

n = 1014

90 %

97 %

<2 years

n = 420

n = 159

n = 261

p = .008 [6 %;18 %]

31 %

25 %

≥2 years

n = 1133

n = 349

n = 784

69 %

75 %