Table 1 The distribution of total number of sick days, sick-leave periods, and days/sick-leave period in 1985–1996 according to different ICD-8 chapters in a cohort of young adults initially sick-listed ≥ 28 days due to back, neck, or shoulder diagnoses

I

Infectious and parasitic diseases

(4.64–5.47)

II

Neoplasms

(29.60–75.08)

III

Endocrine, nutritional, and metabolic diseases

(12.69–60.28)

IV

Diseases of blood and blood-forming organs

-

V

Mental disorders

(38.69–55.17)

VI

Disease of the nervous system and sense organs

(7.75–33.65)

VII

Diseases of the circulatory system

(16.03–25.43)

VIII

Diseases of the respiratory system

(5.56–6.49)

IX

Diseases of gastrointestinal system

(11.71–24.26)

X

Diseases of genitourinary system

(6.93–9.00)

XI

Complications of pregnancy, childbirth, and the puerperium

(15.73–21.46)

XII

Diseases of the skin and subcutaneous tissue

(8.15–65.27)

XIII

Diseases of the musculoskeletal system and connective tissue

(34.39–39.86)

XIV

Congenital anomalies

(-6.72–32.72)

XV

Certain conditions originating in the perinatal period

XVI

Symptoms, signs, and ill-defined conditions

(4.60–7.05)

XVII

Injury, poisoning, and certain other consequences of external causes

(18.14–25.57)

XVIII

Factors influencing health status and other contacts with health services

(3.12–11.57)

Total

(21.16–23.73)