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Table 2 Comparison of complete and incomplete data sets (t-test/χ2-test)

From: Selection effects may account for better outcomes of the German Disease Management Program for type 2 diabetes

Variable

complete

(n = 357)

incomplete

(n = 489)

p

Age [in years]: mean ± standard deviation (SD)

69.3 ± 10.4

69.5 ± 11.5

n.s.

Women in %

47.3%

47.2%

n.s.

DMP patients in %

78.7%

63.4%

< 0.001

Duration of diabetes [in months]: mean ± SD

115 ± 86

110 ± 78

n.s.

GHb [in %]: mean ± SD

7.0 ± 1.1

6.9 ± 1.1

n.s.

Systolic BP [in mmHg]: mean ± SD

137 ± 17

139 ± 17

n.s.

Diastolic BP [in mmHg]: mean ± SD

79 ± 9

79 ± 10

n.s.

Motivation [3 = high through 1 = low]: mean ± SD

1.6 ± 0.8

1.6 ± 0.8

n.s.

  1. n.s.: statistically not significant (p > 0.05)