Table 4

Mean levels and univariate regression coefficients of participant characteristics at exams I and IV by hand-grip strength (kg) at exam IV

Levels of hand-grip strength in kg at exam IVCoeff/SEp for trend*
0–25 (n = 774)26–30 (n = 1009)31–35 (n = 987)⩾36 (n = 752)
* p for trend obtained from linear regression models (unadjusted).
†Covariates assessed at exam IV.
n changes slightly for each variable.
Coeff, parameter estimate from linear regression models; SE, standard error (note: the regression coefficients were unadjusted).
Age (years)56.0 (5.4)53.1 (4.3)51.3 (3.8)50.1 (3.0)−0.648/0.022<0.001
Physical activity33.2 (4.7)32.9 (4.8)32.7 (4.6)32.6 (4.6)−0.008/0.0030.002
Coffee consumption (4 oz cups)3.1 (3.0)3.3 (3.2)3.5 (3.3)3.8 (3.3)0.1472/0.035<0.001
Glucose (mg/dl)154.7 (53.2)154.3 (50.3)149.0 (43.0)146.0 (43.5)−0.010/0.002<0.001
BMI (kg/m2)23.3 (3.0)23.9 (2.9)24.0 (2.7)24.3 (2.7)0.271/0.040<0.001
Alcohol intake (g/month)358.2 (692.8)336.6 (575.4)323.0 (562.7)348.8 (590.5)−0.0001/.0010.487
Smoking (pack-years)22.5 (24.5)20.8 (23.1)20.9 (22.6)21.8 (21.5)−0.0050/.0050.366
CASI score†73.1 (21.3)84.3 (10.0)87.5 (8.4)88.1 (7.4)0.226/0.007<0.001
Education† (years)9.6 (3.2)10.5 (3.2)10.9 (3.2)11.0 (3.0)0.332/0.035<0.001
Haemoglobin† (g/dl)14.2 (1.6)14.7 (1.4)15.1 (1.3)15.3 (1.2)1.455/0.078<0.001