Guideline adherence and lost workdays for acute low back pain in the California workers’ compensation system

Fraser W. Gaspar; Matthew S. Thiese; Kerri Wizner; Kurt Hegmann

doi:10.1371/journal.pone.0253268

Table 1

Demographic characteristics of the study population (n = 59,656).

Categories Number of workers (%)
Gender
Female 19,991 (33.5%)
Male 39,433 (66.1%)
Unknown/missing 232 (0.4%)
Age (years)
<25 5,348 (9.0%)
25 to 34 15,958 (26.8%)
35 to 44 15,191 (25.5%)
45 to 54 13,787 (23.1%)
55 to 64 8,095 (13.6%)
65 to 74 1,149 (1.9%)
Unknown/missing 128 (0.2%)
Employment status
Regular employee 39,798 (66.7%)
Part-time employee 6,609 (11.1%)
Other (e.g., seasonal, apprenticeship) 3,475 (5.8%)
Unknown/missing 9,774 (16.4%)
Annual income
<$25,000 19,170 (32.1%)
$25,000 to <$35,000 13,940 (23.4%)
$35,000 to <$45,000 8,738 (14.6%)
$45,000 to <$55,000 5,959 (10.0%)
$55,000 to <$65,000 3,412 (5.7%)
$65,000 to <$75,000 2,396 (4.0%)
≥$75,000 6,024 (10.1%)
Unknown/missing 17 (<0.1%)
Rurality
Rural 3,786 (6.3%)
Urban 55,417 (92.9%)
Unknown/missing 453 (0.8%)

Categories	Number of workers (%)
Gender
Female	19,991 (33.5%)
Male	39,433 (66.1%)
Unknown/missing	232 (0.4%)
Age (years)
<25	5,348 (9.0%)
25 to 34	15,958 (26.8%)
35 to 44	15,191 (25.5%)
45 to 54	13,787 (23.1%)
55 to 64	8,095 (13.6%)
65 to 74	1,149 (1.9%)
Unknown/missing	128 (0.2%)
Employment status
Regular employee	39,798 (66.7%)
Part-time employee	6,609 (11.1%)
Other (e.g., seasonal, apprenticeship)	3,475 (5.8%)
Unknown/missing	9,774 (16.4%)
Annual income
<$25,000	19,170 (32.1%)
$25,000 to <$35,000	13,940 (23.4%)
$35,000 to <$45,000	8,738 (14.6%)
$45,000 to <$55,000	5,959 (10.0%)
$55,000 to <$65,000	3,412 (5.7%)
$65,000 to <$75,000	2,396 (4.0%)
≥$75,000	6,024 (10.1%)
Unknown/missing	17 (<0.1%)
Rurality
Rural	3,786 (6.3%)
Urban	55,417 (92.9%)
Unknown/missing	453 (0.8%)