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Table 3 Multivariable-adjusted odds ratio for the association between quartiles of HGS and depression by subgroups

From: Association between handgrip strength and depression among Chinese older adults: a cross-sectional study from the China Health and Retirement Longitudinal Study

 

N

Q1

Q2

Q3

Q4

P for trend

P for interaction

Total

7036

Ref

0.84 (0.72, 0.98)

0.70 (0.58, 0.84)

0.46 (0.35, 0.61)

 < 0.001

—

Gendera

      

0.034

 Male

3358 (47.7%)

Ref

0.62 (0.34, 1.15)

0.49 (0.28, 0.86)

0.32 (0.19, 0.55)

 < 0.001

 

 Female

3678 (52.3%)

Ref

0.85 (0.73, 1.00)

0.72 (0.58, 0.89)

0.56 (0.36, 0.88)

 < 0.001

 

Age (y)

      

0.372

 [60, 70]

4572 (65.0%)

Ref

0.81 (0.67, 0.98)

0.71 (0.56, 0.90)

0.43 (0.30, 0.61)

 < 0.001

 

  > 70

2464 (35.0%)

Ref

0.91 (0.70, 1.19)

0.68 (0.49, 0.94)

0.52 (0.33, 0.83)

0.003

 

Marriage

      

0.718

 Married

6227 (88.5%)

Ref

0.83 (0.70, 0.99)

0.69 (0.56, 0.85)

0.47 (0.35, 0.63)

 < 0.001

 

 Single

809 (11.5%)

Ref

0.86 (0.58, 1.29)

0.75 (0.40, 1.42)

0.33 (0.11, 1.02)

0.076

 

BMI (kg/m2)

      

0.625

  ≤ 18.4

351 (5.0%)

Ref

0.63 (0.29, 1.38)

0.36 (0.10, 1.30)

0.35 (0.07, 1.79)

0.074

 

 18.5–23.9

3263 (46.7%)

Ref

0.87 (0.69, 1.09)

0.72 (0.53, 0.97)

0.49 (0.32, 0.76)

0.001

 

  ≥ 24.0

3377 (48.3%)

Ref

0.83 (0.67, 1.04)

0.70 (0.54, 0.90)

0.45 (0.30, 0.65)

 < 0.001

 

Sleep (h)

      

0.686

  ≤ 6

3384 (48.6%)

Ref

0.88 (0.71, 1.09)

0.71 (0.55, 0.93)

0.54 (0.37, 0.79)

0.001

 

  > 6

3583 (51.4%)

Ref

0.79 (0.62, 1.00)

0.68 (0.51, 0.91)

0.39 (0.26, 0.59)

 < 0.001

 

Comorbidities

      

0.833

 None

6933 (98.5%)

Ref

0.83 (0.71, 0.97)

0.69 (0.57, 0.84)

0.46 (0.35, 0.61)

 < 0.001

 

 At least one

103 (1.5%)

Ref

2.11 (0.37, 12.21)

1.08 (0.11, 10.44)

0.44 (0.03, 6.34)

0.608

 
  1. Data are presented as odds ratio (95% confidence interval); Q quartiles, Ref. reference
  2. Models were adjusted for gender, age, marriage, body mass index, comorbidities, smoking, drinking, and sleep time except the subgroup variable itself
  3. aGiven the significant interaction of gender, we additionally calculated predicted probabilities, male is 79.2%, and female is 61.8%