Table 4

Number of morbidity episodes and average duration of absence per episode by gender and diagnosis, 1990–99, Norco plant

FemalesMales
Cause of morbidity (ICD-CM 9th rev. codes)n%Average durationn%Average duration
Excludes absences due to pregnancy.
Infectious and parasitic diseases (000–139)62.038.0341.611.4
Malignant neoplasms (140–208)103.398.4361.774.9
Benign and other neoplasms (210–239)93.028.1140.629.8
Endocrine and metabolic disease (240–279)20.710.0341.631.5
Mental disorders (290–279)227.357.3793.644.4
Nervous system (320–389)155.031.6914.242.9
Circulatory system (390–459)20.723.51024.755.5
Respiratory system (460–519)4514.931.225311.710.5
Digestive system (520–579)175.615.01486.817.8
Genitourinary system (580–629)3411.328.6673.146.5
Skin and subcutaneous tissue (680–709)20.723.0381.811.9
Musculoskeletal (710–739)289.348.140418.640.9
Symptoms and ill defined conditions (780–799)8929.516.653324.618.5
Injury and poisoning (800–999)186.018.333015.223.9
Unknown and all other causes31.024.080.433.9
All causes (000–999)302100.330.42171100.228.1