Table 6

Odds ratios* for respiratory symptoms associated with previous retirement from mills in cotton and silk workers over 15 years

Chest tightnessChronic bronchitisChronic coughDyspnoea (+2)Any symptom†
*The GEE analysis was performed using all available data of 429 cotton and 449 silk workers over 15 years, with adjustment for age, gender, years worked, and smoking status. Statistically significant odds ratios are italicised.
†Positive report for any of the symptoms including chest tightness, chronic bronchitis, cough, and dyspnoea.
Cotton workers (n = 429)
Retirement from mills0.3 (0.11 to 0.97)0.3 (0.09 to 0.90)0.3 (0.11 to 0.89)0.2 (0.09 to 0.55)0.2 (0.11 to 0.48)
Years since last worked0.9 (0.86 to 0.98)0.8 (0.77 to 0.92)0.9 (0.81 to 0.96)0.9 (0.82 to 0.94)0.9 (0.80 to 0.92)
Silk workers (n = 449)
Retirement from mills0.3 (0.10 to 0.86)0.1 (0.05 to 0.45)0.3 (0.09 to 0.78)0.5 (0.24 to 1.01)0.4 (0.18 to 0.65)
Years since last worked1.0 (0.92 to 1.15)1.0 (0.86 to 1.04)1.0 (0.86 to 1.06)1.0 (0.91 to 1.03)1.0 (0.91 to 1.01)