Table 3.

Factors associated with the trajectory patterns for social interaction scores.

	Men		Women		All participants
	OR	95% CI	OR	95% CI	OR	95% CI
Sex (reference: women)	–	–	–	–	2.44	2.10–2.82
Age (years) (1-year increments)	1.01	0.99–1.03	0.98	0.96–0.99	0.98	0.97–0.99
Chronic disease (reference: none)
Hypertension	0.90	0.73–1.11	0.81	0.66–0.99	0.93	0.80–1.08
Diabetes mellitus	1.00	0.75–1.32	0.85	0.60–1.21	0.90	0.72–1.13
Stroke	0.74	0.47–1.17	0.74	0.36–1.52	0.67	0.46–0.97
Heart disease	1.18	0.89–1.58	0.76	0.53–1.10	1.07	0.85–1.34
IADL score (1-point increments)	0.78	0.67–0.92	0.86	0.71–1.04	0.86	0.77–0.97
Self-rated health (reference: very healthy)
Healthy enough	1.40	0.99–1.98	1.97	1.41–2.75	1.68	1.32–2.14
Not very healthy	1.50	0.97–2.32	2.55	1.69–3.85	2.17	1.60–2.94
Not healthy	1.83	0.98–3.41	4.67	2.49–8.78	2.74	1.76–4.26
Perceived financial status (reference: very comfortable)
A little comfortable	1.55	0.81–2.95	1.12	0.67–1.89	1.14	0.76–1.72
Neither comfortable nor hard	2.08	1.09–3.95	1.29	0.77–2.17	1.51	1.00–2.26
A little hard	2.09	1.08–4.06	1.30	0.75–2.25	1.61	1.05–2.46
Very hard	3.40	1.49–7.75	1.65	0.80–3.41	2.36	1.36–4.08
Living alone (reference: not living alone)	1.30	0.97–1.74	0.84	0.68–1.05	0.99	0.82–1.18
Social participation (reference: participation)
Neighborhood associations	1.88	1.47–2.41	1.37	1.10–1.72	1.68	1.42–1.99
Senior citizen clubs	1.49	0.99–2.25	0.91	0.66–1.25	1.08	0.84–1.40
Hobby groups	2.09	1.61–2.72	1.81	1.47–2.22	1.71	1.45–2.01
Sports groups	2.02	1.52–2.69	1.50	1.20–1.88	1.57	1.31–1.87
Volunteer groups	1.21	0.79–1.86	1.24	0.87–1.78	1.57	1.18–2.09

CI, confidence interval; OR, odds ratio; IADL, instrumental activities of daily living; numbers in bold are statistically significant; dependent variable: pattern of trajectories for social interaction score (reference: high-frequency group).