Table 2.

Effect of combination of family structure and social activity on incident frailty during the pandemic

	Total	Incident Frailty		Crude model				Adjusted model
	n	n	%	OR	95%CI		P-value	OR	95%CI		P-value
Items					Min	Max			Min	Max
Not living alone and socially active	419	65	15.5	1.00	Ref			1.00	Ref
Not living alone and socially inactive	390	60	15.4	0.99	0.68	1.45	0.960	0.94	0.61	1.45	0.774
Living alone and socially active	69	8	11.6	0.71	0.33	1.56	0.400	0.64	0.27	1.51	0.310
Living alone and socially inactive	59	17	28.8	2.20	1.18	4.11	0.013	2.04	1.01	4.10	0.047

OR, odds ratio; CI, confidence interval; Min, minimum; Max, maximum; Adjusted model: adjusted for age, sex, underweight, polypharmacy, hypertension, hyperlipidemia, diabetes, cancer, cardiovascular disease, kidney disease, orthopedic disease, lower health literacy, total PA time, and total Kihon checklist score in January 2020.