Table 2

Characteristics of the Czech and the DACHS study population, at the time of diagnosis for cases and at the time of sampling for controls
Characteristics Czech Cases Czech Controls p value DACHS Cases DACHS Controls p value
total 1025 787 1798 1810
male [n (%)] 594 [58%] 453 [58%] 0.35c 1052 [59%] 1078 [60%] 0.52c
female [n (%)] 399 [39%] 333 [42%] 746 [41%] 732 [40%]
missing sex information [n (%)] 32 [3%] 1 [0.1%] 0
median age [range] 63 [26–86] 55 [24–91] <0.0001b 69 [33–94] 70 [34–98] 0.21b
missing age information [n (%)] 32 [3%] 1 [0.1%] 0
median BMIa [range] 27 [13–53] 26 [17-44] 0.49b 27 [17–50] 26 [16–46] <0.0001b
missing BMIa information [n (%)] 312 [30%] 294 [37%] 28 [2%] 10 [0.6%]
diabetes [n (%)] 142 [14%] 62 [8%] 0.002c 326 [18%] 247 [14%] 0.0002c
diabetes no [n (%)] 598 [58%] 434 [55%] 1456 [82%] 1558 [86%]
missing diabetes information [n (%)] 285 [28%] 291 [37%] 16 [0.9%] 5 [0.3%]

BMI, body mass index; a for case samples BMI five years before diagnosis; b Wilcoxon two sample test; c chi-square test.

Huhn et al.

Huhn et al. BMC Medical Genetics 2012 13:94   doi:10.1186/1471-2350-13-94

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