Table 2 Cox proportional hazards regression analysis of PFI and incident stroke.

From: Association between the psychological frailty index and stroke: a cohort study from CHARLS

Characteristic

Crude model

Model 1

Model 2

HR (95% CI)

P-value

HR(95% CI)

P-value

HR (95% CI)

P-value

PFI

(continuous)

2.57(2.18,3.04)

< 0.001

2.20(1.82,2.67)

< 0.001

1.87(1.54,2.27)

< 0.001

PFI (quartiles)

 

Q1

reference

 

reference

 

reference

 

Q2

2.11(1.34,3.33)

0.001

1.93(1.21,3.05)

0.010

1.74(1.09,2.76)

0.020

Q3

3.29(2.12,5.10)

< 0.001

2.51(1.58,3.99)

< 0.001

2.19(1.38,3.49)

< 0.001

Q4

5.69(3.77,8.58)

< 0.001

4.03(2.58,6.31)

< 0.001

3.12(1.99,4.91)

< 0.001

P for trend

 

< 0.001

 

< 0.001

 

< 0.001

  1. Crude model: No covariates were adjusted
  2. Model 1: Age, gender, location, and marital status were adjusted
  3. Model 2: Age, gender, location, marital status, smoke, drink, hypertension, diabetes, dyslipidemia, and heart disease were adjusted
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