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Table 3 Hazard ratios for functional disability among the self-rated health groups excluding participants with sub-clinical and severe cases

From: Poor self-rated health predicts the incidence of functional disability in elderly community dwellers in Japan: a prospective cohort study

 

Self-rated health

P for trend

Good

Rather good

Neither good nor poor

Poor

 

Functional disability excluded participants who were sub-clinical cases

 Men (n = 4126)

  Number of participants

1356

1899

 

605

 

266

  

  Number of the cases (person-years/1000 person-years)

342 (2.52)

517 (3.82)

 

172 (1.19)

 

102 (1.50)

  

  HR, 95% CI

1 (reference)

1.02

0.89, 1.17

1.05

0.87, 1.27

1.58

1.26, 1.98

0.001

 Women (n = 6323)

  Number of participants

1569

3166

 

1081

 

507

  

  Number of cases (person-years/1000 person-years)

410 (3.10)

918 (6.83)

 

349 (2.52)

 

213 (1.50)

  

  HR, 95% CI

1 (reference)

1.12

1.00, 1.26

1.25

1.08, 1.44

1.71

1.45, 2.02

< 0.001

Functional disability in severe cases

 

 Men (n = 4333)

  Number of participants

1412

1990

 

635

 

296

  

  Number of cases (person-years/1000 person-years)

258 (1.82)

401 (2.72)

 

129 (0.85)

 

84 (0.48)

  

  HR, 95% CI

1 (reference)

1.03

0.85, 1.26

1.12

0.86, 1.46

1.71

1.26, 2.33

0.004

 Women (n = 6627)

  Number of participants

1624

3292

 

1143

 

568

  

  Number of cases (person-years/1000 person-years)

254 (1.84)

510 (3.57)

 

211 (1.37)

 

139 (0.83)

  

  HR, 95% CI

1 (reference)

0.98

0.85, 1.14

1.17

0.97, 1.40

1.62

1.31, 1.99

< 0.001

  1. Abbreviations: CI confidence interval, HR hazard ratios
  2. Cox regression analysis adjusted for the variables below
  3. Men: diastolic blood pressure, non-high-density lipoprotein cholesterol, hemoglobin, glycosylated hemoglobin, estimated glomerular filtration rate, job status, marital status, alcohol drinking status, regular exercise habits, and sleep duration
  4. Women: total cholesterol, non-high-density lipoprotein cholesterol, glycosylated hemoglobin, estimated glomerular filtration rate, job status, marital status, and regular exercise habits