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Table 2 Correlation between PCT quartiles and mortality adjusted for age and sex

From: Plasma procalcitonin is associated with all-cause and cancer mortality in apparently healthy men: a prospective population-based study

Subjects Outcome Number of eventsa Q2 versus Q1 Q3 versus Q1 Q4 versus Q1 Pfor linear trend
HR (95% CI) HR (95% CI) HR (95% CI)
All subjects All-cause mortality 8.39 1.05 (0.77 to 1.43) 1.29 (0.96 to 1.73) 1.63 (1.22 –to 2.17) <0.001***
Cancer mortality 3.88 1.07 (0.69 to 1.68) 1.47 (0.96 to 1.25) 1.60 (1.04 to 2.43) 0.014*
CVD mortality 2.34 1.24 (0.67 to 2.29) 1.30 (0.71 to 2.36) 1.94 (1.09 to 3.42) 0.016*
Mortality from causes other than cancer and CVD 2.16 0.92 (0.50 to 1.68) 1.08 (0.60 to 1.93) 1.49 (0.86 to 2.60) 0.096
Men All-cause mortality 11.14 0.98 (0.67 to 1.45) 0.98 (0.68 to 1.42) 1.50 (1.08 to 2.09) 0.020*
Cancer mortality 4.92 1.54 (0.86 to 2.75) 1.23 (0.68 to 2.21) 1.96 (1.15 to 3.35) 0.027*
CVD mortality 3.13 0.74 (0.34 to 1.61) 0.86 (0.43 to 1.72) 1.41 (0.76 to 2.60) 0.208
Mortality from causes other than cancer and CVD 3.09 0.65 (0.03 to 1.40) 0.86 (0.44 to 1.67) 1.15 (0.62 to 2.12) 0.557
Women All-cause mortality 6.30 1.45 (0.86 to 2.46) 1.57 (0.91 to 2.71) 2.04 (1.22 to 2.34) 0.004*
Cancer mortality 3.13 1.51 (0.77 to 2.99) 1.25 (0.59 to 2.62) 1.62 (0.81 to 3.23) 0.295
CVD mortality 1.74 1.18 (0.36 to 3.86) 1.91 (0.61 to 6.00) 2.73 (0.93 to 8.06) 0.012*
Mortality from causes other than cancer and CVD 1.46 1.66 (0.52 to 5.25) 2.17 (0.68 to 6.96) 2.40 (0.78 to 7.38) 0.106
  1. Cox regression analysis adjusted for age and sex. aExpressed per 1,000 person years. CI, confidence interval; CVD, cardiovascular disease; HR, hazard ratio; PCT, procalcitonin; Q, quartile. *P <0.05, ***P <0.001.
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