Table 1

Characteristics of the 35,155 respondents at baseline and incidence rate of depression at follow-up
No injury (n = 32,544) Non-occupational injury (n = 1,707) Occupational injury (n = 904)
Selected characteristics n (%) n (%) n (%)
Sex (%)*
  Men 16,764 (51.5) 881 (51.6) 598 (66.2)
  Women 15,780 (48.5) 825 (48.4) 306 (33.8)
Mean age (years) 38.9 (12.0) 38.5 (12.1) 39.5 (11.5)
Race
  White 22,691 (69.7) 1,210 (70.9) 644 (71.2)
  Black 4,164 (12.8) 211 (12.4) 97 (10.7)
  Other 5,689 (17.5) 286 (16.7) 163 (18.0)
Education*
  Less than high school 7,490 (23.0) 480 (28.1) 255 (28.2)
  High school graduate 15,009 (46.1) 793 (46.5) 455 (50.3)
  College or more 7,639 (23.5) 291 (17.0) 123 (13.6)
  Other degree 2,406 (7.4) 143 (8.4) 71 (7.9)
Marital status*
  Married 19,481 (59.8) 921 (53.9) 517 (57.2)
  Never married 8,635 (26.5) 505 (29.6) 227 (25.1)
  Divorced, widowed, separated 4,428 (13.6) 281 (16.5) 160 (17.7)
Family income*
  High 12,578 (38.6) 732 (42.9) 273 (30.2)
  Middle 10,878 (33.4) 546 (32.0) 343 (37.9)
  Low 9,088 (28.0) 429 (25.1) 288 (31.8)
No usual source of health care* 9,620 (30.0) 389 (22.9) 247 (27.4)
Health insurance coverage*
  Any private 24,335 (74.8) 1,370 (80.3) 643 (71.1)
  Public only 1,845 (5.7) 102 (6.0) 54 (6.0)
  Uninsured 6,364 (19.5) 235 (13.8) 207 (22.9)
Exercise 18,587 (57.1) 1,021 (59.8) 517 (57.2)
Current smoking§ * 6,420 (19.7) 360 (21.1) 251 (27.8)
Alcohol or substance abuse problem
Obese (BMI ≥ 30) * 8,439 (25.9) 411 (24.1) 292 (32.3)
Functional activity limitation|| * 412 (1.3) 38 (2.2) 22 (2.4)
Cognitive function impairment 264 (0.8) 24 (1.4) 7 (0.7)
Comorbidity 2,940 (9.0) 158 (9.3) 87 (9.6)
Self rated physical health: Poor* 284 (0.9) 19 (1.1) 24 (2.6)
Self rated mental health: Poor* 67 (0.2) 7 (0.4) 4 (0.4)
Incidence of depression at follow-up periods* 1,006 (3.1) 81 (4.7) 50 (5.5)
Person-round 130,176 6,828 3,616

* p < 0.05.

Family income: family income as percentage of federal poverty line (high, ≥400% FPL; middle, 200-399% FPL; low, <200% FPL).

Exercise: having moderate or vigorous physical activity three times per week.

§ Current smoker: has smoked at least 100 cigarettes in their lifetime and currently smokes every day or some days.

|| Functional activity limitation was defined as having any activity limitation at work or home due to medical condition.

Charlson Comorbidity Index ≥ 1.

Kim

Kim BMC Public Health 2013 13:303   doi:10.1186/1471-2458-13-303

Open Data