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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: Hypertension. 2020 Oct 26;76(6):1717–1724. doi: 10.1161/HYPERTENSIONAHA.120.15868

Table 2 –

Number of non-primary SPRINT outcome hospitalizations by randomized arm and pre-specified SPRINT subgroups*

SPRINT group Intensive arm Standard arm p-value
Number of hospitalizations Number of person years Hospitalizations per 100 person years Number of hospitalizetions Number of person years Hospitalizations per 100 person years
Overall 2907 14756.2 19.70 2887 14688.8 19.65 0.37
   Previous CKD
  Yes 1133 4229.2 26.79 1197 4161.0 28.77 0.34
  No 1774 10526.9 16.85 1690 10527.9 16.05 0.06
 Age
  < 75 years 1861 10774.2 17.27 1721 10749.0 16.01 0.11
  >= 75 years 1046 3981.9 26.27 1166 3939.8 29.60 0.59
 Sex
  Male 1878 9393.5 19.99 1929 9463.1 20.38 0.90
  Female 1029 5362.6 19.19 958 5225.7 18.33 0.16
 Race
  African American 840 4524.4 18.57 956 4646.7 20.57 0.31
  Non-African American 2067 10231.7 20.20 1931 10042.1 19.23 0.08
   Hispanic 168 1380.6 12.17 120 1344.2 8.93 0.01
   European American 1864 8565.4 21.76 1787 8511.9 20.99 0.25
   Other 35 285.6 12.25 24 186.0 12.90 0.38
 Previous CV disease
  Yes 879 2931.0 29.99 892 2871.3 31.07 0.89
  No 2028 11825.1 17.15 1995 11817.5 16.88 0.25
 Systolic BP
  <=132 mm Hg 972 5038.0 19.29 949 4841.3 19.60 0.89
  > 132 to < 145 mmHg 966 4714.9 20.49 874 4892.7 17.86 0.03
  >= 145 mm Hg 969 5003.2 19.37 1064 4954.8 21.47 0.52
*

Excludes hospitalizations linked to a primary SPRINT outcome. These primary SPRINT outcome events include the first occurrence of myocardial infarction, stroke, heart failure, or non-MI acute coronary syndrome.

P-values computed using the Tweedie distribution; analyses were repeated with the gamma distribution which yielded similar results.

There was no evidence of a difference in secondary event hospitalization rates after adjusting for age, gender, ethnicity, previous CKD, previous CVD, and systolic blood pressure (p=0.27).

Formal test of interaction with the treatment arm p-value: Previous CKD p=0.058; Age p=0.157; Sex p=0.294; Race p=0.219; Previous CV disease p=0.469; Systolic BP p=0.564.