Skip to main content

Table 1 Absolute and relative frequencies of sociodemographic, lifestyle- and work-related characteristics in all participants of the occupational health check-up (2011–2014) and stratified by occupational status (n = 16,792)

From: Prevalence of back pain in employees of a German chemical company: results of a large cross-sectional study

  Total Manual workers Skilled/supervisory workers Managerial staff
n (%) n (%) n (%) n (%)
Total 16,792 (100.0) 5571 (100.0) 7690 (100.0) 3531 (100.0)
Sociodemographic characteristics
 Age (mean [SD]) 43.7 (9.7) 43.1 (10.1) 43.4 (9.7) 45.2 (8.6)
   < 35 3273 (19.5) 1165 (20.9) 1618 (21.0) 490 (13.9)
  35–39 1858 (11.1) 634 (11.4) 730 (9.5) 494 (14.0)
  40–44 2801 (16.7) 930 (16.7) 1250 (16.3) 621 (17.6)
  45–49 3427 (20.4) 1078 (19.4) 1732 (22.5) 617 (17.5)
  50–54 3312 (19.7) 1100 (19.8) 1463 (19.0) 749 (21.2)
  ≥ 55 2121 (12.6) 664 (11.9) 897 (11.7) 560 (15.9)
 Gender
  Male 13,279 (79.1) 5317 (95.4) 5193 (67.5) 2769 (78.4)
  Female 3513 (20.9) 254 (4.6) 2497 (32.5) 762 (21.6)
 Marital status
  Single 3412 (20.3) 1343 (24.1) 1518 (19.7) 551 (15.6)
  Married 11,980 (71.3) 3775 (67.8) 5422 (70.5) 2783 (78.8)
  Divorced 1235 (7.4) 407 (7.3) 667 (8.7) 161 (4.6)
  Widowed 129 (0.8) 33 (0.6) 75 (1.0) 21 (0.6)
  Missing information 36 (0.2) 13 (0.2) 8 (0.1) 15 (0.4)
Lifestyle-related characteristics
 Body-Mass-Index (mean [SD]) 26.6 (4.4) 27.9 (4.5) 26.5 (4.5) 25.0 (3.6)
  Normal weight (< 25 kg/m2) 6442 (38.4) 1440 (25.9) 3073 (40.0) 1929 (54.6)
  Overweight (25- < 30 kg/m2) 7153 (42.6) 2672 (48.0) 3191 (41.5) 1290 (36.5)
  Obesity (≥30 kg/m2) 3186 (19.0) 1459 (26.2) 1423 (18.5) 304 (8.6)
  Missing information 11 (0.1) 0 (0.0) 3 (0.0) 8 (0.2)
 Smoking status
  Non-smoker 9087 (54.1) 2140 (38.4) 4176 (54.3) 2771 (78.5)
  Former smoker 4206 (25.1) 1639 (29.4) 2044 (26.6) 523 (14.8)
  Smoker 3454 (20.6) 1791 (32.2) 1453 (18.9) 210 (6.0)
  Missing information 45 (0.3) 1 (0.0) 17 (0.2) 27 (0.8)
Work-related characteristics
 Working time system
  Day work 12,105 (72.1) 2248 (40.4) 6341 (82.5) 3516 (99.6)
  Shift work 4637 (27.6) 3323 (59.7) 1309 (17.0) 5 (0.1)
  Missing information / other 50 (0.3) 0 (0.0) 40 (0.5) 10 (0.3)
 Work-related stress score in quartiles (mean [SD]) 8.2 (2.9) 7.7 (2.9) 8.3 (2.9) 8.9 (2.8)
  Q1 (0–6 points) 4704 (28.0) 1878 (33.7) 2144 (27.9) 682 (19.3)
  Q2 (7–8 points) 4448 (26.5) 1525 (27.4) 2005 (26.1) 918 (26.0)
  Q3 (9–10 points) 3792 (22.6) 1144 (20.5) 1772 (23.0) 876 (24.8)
  Q4 (≥11 points) 3539 (21.1) 903 (16.2) 1632 (21.2) 1004 (28.4)
  Missing information 309 (1.8) 121 (2.2) 137 (1.8) 51 (1.4)
  1. All percentages depicted in the table are column percentages; SD: standard deviation