Skip to main content

Table 1 General characteristics of the study sample

From: Job strain and resting heart rate: a cross-sectional study in a Swedish random working sample

  All Men Women p-value*
Total, n (%)a 1552 752 (48.5) 800 (51.5)  
-Job strain ratio >1, n (%)b 621 (40.0) 246 (32.7) 375 (46.9) <0.01
-Job strain ratio ≤1, n (%)b 931 (60.0) 506 (67.3) 425 (53.1)
Mean age 46.0 46.6 45.4 0.02
Age, range (median) 24–71 (46) 24–71 (47) 25–68 (45)  
Mean heart rate (SD) 61.0 (9.9) 59.4 (10.0) 62.4 (9.5) <0.01
Heart rate, range (median) 35–109 (60) 35–109 (59) 39–101 (62)  
Mean diastolic blood pressure (mmHg) 81.3 82.5 80.2 <0.01
Mean systolic blood pressure (mmHg) 126.6 130.5 122.9 <0.01
Mean BMI (kg/m2) 25.5 26.2 24.8 <0.01
BMI, n (%)b     <0.01**
-Underweight (BMI <18.5 kg/m2) 8 (0.5) 0 (0) 8 (1.0)  
-Normal weight (18.5 ≤BMI <25 kg/m2) 769 (49.5) 300 (39.9) 469 (58.6)  
-Overweight (25 ≤BMI <30 kg/m2) 602 (38.8) 355 (47.2) 247 (30.9)  
-Obese (BMI ≥30 kg/m2) 173 (11.1) 97 (12.9) 76 (9.5)  
Waist measure, mean (cm) 86.5 92.9 80.2 <0.01
Current smokers, % 260 (16.9) 95 (12.8) 165 (20.7) <0.01
Leisure time physical activity, n (%)b     <0.01
-Sedentary leisure time 147 (9.5) 86 (11.5) 61 (7.6)  
-Moderate exercise during leisure time 889 (57.4) 409 (54.5) 480 (60.1)  
-Regular exercise and training 468 (30.2) 225 (30.0) 243 (30.4)  
-Hard exercise or competitive sports 45 (2.9) 30 (4.0) 15 (1.9)  
Education, n (%)b     <0.01
-Compulsory school 193 (12.5) 119 (15.8) 74 (9.3)  
-Lower secondary school 336 (21.7) 165 (21.9) 171 (21.5)  
-Upper secondary school 424 (27.4) 219 (29.1) 205 (25.7)  
-University education 596 (38.5) 249 (33.1) 347 (43.5)  
  1. aRow percentage
  2. bColumn percentage
  3. *Presented for significant differences between men and women. T-test was used for continuous variables and chi2 for categorical variables
  4. **Fisher’s exact test was used since the number of underweight subjects in one of the categories were less than 5, rendering the chi2-test potentially invalid