Research Article

Serum Tumour Markers in Testicular Germ Cell Tumours: Frequencies of Elevated Levels and Extents of Marker Elevation Are Significantly Associated with Clinical Parameters and with Response to Treatment

Table 9

(a) Frequencies of elevated marker levels in relapsing patients

bHCG elevatedAFP elevatedLDH elevatedbHCG and AFP elevatedbHCG and LDH elevatedAFP and LDH elevatedbHCG, AFP and LDH elevatedbHCG or AFP elevatedbHCG, AFP or LDH elevated
Nn (%)n (%)n (%)n (%)n (%)n (%)n (%)n (%)n (%)
95% CI [%]95% CI [%]95% CI [%]95% CI [%]95% CI [%]95% CI [%]95% CI [%]95% CI [%]95% CI [%]

at diagnosis
 all patients422160 (37.9%)108 (25.6)139 (32.9)67 (15.9%)73 (17.3%)46 (10.9%)30 (7.1%)201 (47.6%)251 (59.5%)
33.3 - 42.821.6 - 30.128.5 - 37.712.6 - 19.813.9 - 21.38.2 - 14.44.9 - 10.142.8 - 52.554.6 - 64.2
 no relapse390151 (38.7%)100 (25.6)130 (33.3)61 (15.6%)70 (17.9%)43 (11.0%)28 (7.2%)190 (48.7%)235 (60.3%)
33.9 - 43.821.4 - 30.328.7 - 38.312.3 - 19.714.3 - 22.28.2 - 14.74.9 - 10.343.7 - 53.855.2 - 65.1
 later relapse329 (28.1%)8 (25.0%)9 (28.1%)6 (18.8%)3 (9.4%)3 (9.4%)2 (6.3%)11 (34.4%)16 (50.0%)
14.4 - 47.012.1 - 43.814.4 - 47.07.9 - 37.02.5 - 26.22.5 - 26.21.1 - 22.219.2 - 53.232.2 - 67.8
 p-0.23510.93630.54050.64360.21570.76980.84120.11840.2559
at relapse
 yes277 (25.9%)6 (22.2%)8 (29.6%)4 (14.8%)3 (11.1%)4 (14.8%)3 (11.1%)9 (33.3%)13 (48.1%)
11.9 - 46.69.4 - 42.714.5 - 50.34.9 - 34.62.9 - 30.34.9 - 34.62.9 - 30.317.2 - 54.029.2 - 67.6
 p-0.52710.317310.0000.414210.0000.65470.56370.47950.5271

Chi square-Test for comparison of marker expression rates among relapsing patients and those without relapse
Mc-Nemar-Test for comparison of marker expression rates of relapsing patients at different time points.
(b) Marker levels of nonseminoma patients with relapse

bHCG [x-fold of ULN]AFP [x-fold of ULN]LDH [x-fold of ULN]
nMinMedian (Q1 - Q3)MaxMinMedian (Q1 - Q3)MaxMinMedian (Q1 - Q3)Max

at diagnosis
 not relapsing1570.031.39 (0.45 - 19.18)749063.670.101.93 (0.53 - 12.66)1630.460.550.90 (0.77 - 1.11)17.00
 later relapsing110.340.67 (0.41 - 16.78)6347.410.242.56 (0.36 - 16.79)5906.580.690.96 (0.79 - 1.16)2.39
 p-value a0.87990.90300.7715
at relapse
 patients with relapse100.340.45 (0.41 - 3.28)229.510.140.49 (0.39 - 9.54)49.880.620.97 (0.88 - 1.06)1.77

 Mann-Whitney U Test for comparison of median serum marker levels.