Table 4. Adjusted odds ratios for decline in instrumental activities of daily living: mutually adjusted model for all items of working history.

	Men (n = 2,572) ORa (95% CI)	Women (n = 3,285) ORa (95% CI)
Working status at baseline (reference: retired)
Working	0.86 (0.66–1.12)	0.70 (0.40–1.22)
Inexperienced	1.54 (0.84–2.82)	1.34 (0.73–2.46)
Total working years (reference: ≥25 years)
1–24 years	1.08 (0.66–1.76)	1.10 (0.80–1.50)
Occupation for the longest held job (reference: white collarb)
Pink collarc	1.00 (0.76–1.31)	0.86 (0.54–1.37)
Blue collard	1.08 (0.80–1.46)	1.09 (0.66–1.82)
Others	0.53 (0.25–1.10)†	0.96 (0.52–1.79)
Employment pattern for the longest held job (reference: stablee)
Unstablef	1.33 (0.97–1.84)†	0.92 (0.64–1.32)
Workplace size for the longest held job (reference: largeg)
Smallh	1.37 (1.03–1.84)*	1.34 (0.93–1.93)

CI, confidence interval; OR, odds ratio.

^aAdjusted for age, marital status, education, self-perceived economic status, body mass index, chronic illnesses, smoking, alcohol consumption, sports habits, cognitive functioning, depression, working status at baseline, total working years, occupation, employment pattern, and workplace size.

^bWhite collar: managers, professionals, and technicians.

^cPink collar: clerical, sales, and services workers.

^dBlue collar: manufacturing, transport, machine, construction, mining, protective services, agricultural, forestry, fishery, carrying, cleaning, and packaging workers.

^eStable: full-time private sector workers and civil servants.

^fUnstable: non-regular employees, self-employed/freelancers, and others.

^gLarge: ≥50 employees.

^hSmall: 1–49 employees.

^†P < 0.10, ^*P < 0.05.