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Table 3 Trend analysis for age adjusted rates of gastroenteritis-associated mortality

From: Trends in gastroenteritis-associated mortality in the United States, 1985–2005: variations by ICD-9 and ICD-10 codes

  Slope from 1985 – 1998 β (95% CI) Slope from 1999 – 2005 β (95% CI) p-value (change in slope)
All gastroenteritis 0.029 (0.001, 0.057) 0.418 (0.105, 0.883) < 0.0001
All gastroenteritis w/o C. difficile 0.016 (−0.006, 0.038) 0.316 (0.077, 0.676) < 0.0001
Bacterial 0.052 (0.035, 0.069) 0.428 (0.099, 0.850) < 0.0001
Bacterial w/o C. difficile 0.032 (0.024, 0.039) 0.129 (0.052, 0.247) < 0.0001
Viral −0.003 (−0.010, 0.005) −0.039 (−0.055, 0.018) 0.0031
Unknown infectious 0.003 (−0.001, 0.007) −0.017 (−0.007, −0.048) 0.0011
Unknown noninfectious −0.001 (−0.023, 0.004) 0.0229 (0.019, 0.092) < 0.0001
  1. Slopes (95% CI) for periods 1985 to 1998 and 1999 to 2005 and p-value for the change in slope between the two time periods.