. 2022 Mar 24;10:822087. doi: 10.3389/fpubh.2022.822087

Table 2.

Logistic regression analysis of factors associated with NSs use.

Variables		Any NSs		Protein		Calcium		Iron		Zinc		Multivitamin		Vitamin A/D		DHA		Others
		OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI	OR	95%CI
Gender	Female	1.71^**	1.46–2.00	1.25	0.92–1.70	1.79^**	1.49–2.17	1.33	0.78–2.28	1.36	0.78–2.38	1.87^**	1.35–2.60	1.36	0.95–1.96	0.69	0.37–1.27	1.35	0.94–1.92
Age,y	75–84	1.09	0.92–1.28	1.18	0.79–1.75	0.97	0.80–1.18	2.43^*	1.18–5.00	1.84	0.90–3.79	1.59^*	1.08–2.33	1.29	0.85–1.95	1.12	0.55–2.26	1.31	0.87–1.97
	85–94	1.30^**	1.08–1.58	2.06^**	1.37–3.08	1.08	0.87–1.35	3.85^**	1.80–8.27	2.66^*	1.23–5.74	2.34^**	1.54–3.56	1.76^*	1.12–2.76	1.26	0.58–2.75	1.87^**	1.20–2.92
	≥95	1.18	0.95–1.46	2.70^**	1.75–4.18	0.83	0.65–1.06	4.96^**	2.14–11.51	3.05^**	1.31–7.12	2.88^**	1.80–4.61	1.46	0.86–2.47	0.91	0.35–2.37	2.03^**	1.22–3.36
Hukou	Urban	1.25^**	1.09–1.44	1.31^*	1.00–1.72	0.95	0.80–1.12	1.29	0.78–2.12	1.19	0.71–2.00	2.86^**	2.11–3.87	2.05^**	1.48–2.86	3.95^**	2.06–7.58	1.90^**	1.39–2.59
Marital status	Others	1.04	0.90–1.21	1.23	0.91–1.66	1.09	0.92–1.29	0.68	0.41–1.14	0.96	0.56–1.65	0.88	0.64–1.20	1.14	0.81–1.60	1.27	0.69–2.34	0.91	0.65–1.27
Education level	Primary and middle school	1.32^**	1.14–1.52	1.40^*	1.04–1.88	1.14	0.96–1.35	1.68	0.95–2.95	1.40	0.78–2.52	2.16^**	1.52–3.06	1.55^*	1.06–2.26	1.09	0.54–2.20	1.46^*	1.03–2.07
	High school and above	1.56^**	1.25–1.94	1.70^*	1.11–2.61	1.27	0.98–1.66	3.49^**	1.72–7.05	3.66^**	1.79–7.46	3.91^**	2.55–5.99	2.80^**	1.74–4.48	1.98	0.87–4.51	1.70^*	1.05–2.74
Living standard	Fair	0.64^**	0.56–0.73	0.59^**	0.45–0.77	0.65^**	0.55–0.76	0.54^**	0.34–0.84	0.53^**	0.33–0.84	0.66^**	0.50–0.87	0.60^**	0.44–0.81	0.54^*	0.32–0.93	0.84	0.61–1.15
	Bad/very bad	0.42^**	0.32–0.55	0.42^**	0.25–0.73	0.44^**	0.33–0.60	0.30^*	0.09–1.01	0.35	0.10–1.19	0.40^*	0.20–0.82	0.51^*	0.26–0.99	0.34	0.08–1.50	0.50	0.25–1.01
Health status	Fair	1.02	0.89–1.17	0.96	0.73–1.25	1.00	0.85–1.17	0.78	0.48–1.24	0.70	0.43–1.15	1.02	0.77–1.35	0.99	0.72–1.36	0.73	0.41–1.31	1.26	0.93–1.71
	Bad/very bad	1.36^**	1.13–1.63	1.10	0.76–1.59	1.35^**	1.10–1.67	0.70	0.34–1.44	0.50	0.22–1.15	1.05	0.70–1.58	1.18	0.76–1.83	0.87	0.38–1.99	1.45	0.94–2.22
Sleep quality	Fair	0.92	0.81–1.06	1.00	0.76–1.32	1.03	0.88–1.21	1.21	0.75–1.96	1.12	0.68–1.86	1.19	0.89–1.58	1.02	0.74–1.41	1.84^*	1.04–3.26	0.80	0.58–1.11
	Bad/very bad	1.01	0.85–1.21	1.29	0.93–1.80	1.01	0.82–1.24	1.30	0.70–2.39	1.18	0.62–2.26	1.09	0.75–1.58	0.99	0.65–1.50	1.88	0.92–3.88	0.83	0.55–1.25
Smoke	Former	1.33^**	1.11–1.60	1.42^*	1.01–2.00	1.28^*	1.03–1.60	0.93	0.50–1.71	0.72	0.37–1.41	1.26	0.87–1.84	1.15	0.76–1.74	0.29^*	0.11–0.77	0.96	0.63–1.47
	Current	0.96	0.78–1.18	0.92	0.61–1.41	0.99	0.78–1.26	0.70	0.32–1.52	0.58	0.26–1.31	0.97	0.61–1.53	0.58	0.33–1.03	0.47	0.18–1.18	0.71	0.43–1.19
Drink	Former	0.97	0.79–1.18	1.17	0.82–1.68	0.97	0.76–1.23	1.97^*	1.09–3.56	2.32^**	1.25–4.32	1.17	0.77–1.77	1.26	0.80–1.96	0.94	0.35–2.51	1.10	0.70–1.72
	Current	0.95	0.79–1.15	0.65^*	0.42–0.99	1.11	0.89–1.37	0.78	0.37–1.65	1.20	0.59–2.41	1.04	0.69–1.56	0.92	0.58–1.48	1.50	0.73–3.05	0.84	0.53–1.34
Exercise	Former	2.24^**	1.83–2.74	1.62^*	1.10–2.38	2.43^**	1.92–3.08	2.71^**	1.43–5.14	4.21^**	2.19–8.09	2.04^**	1.37–3.03	2.08^**	1.33–3.26	1.90	0.78–4.59	1.93^**	1.22–3.05
	Current	2.28^**	2.00–2.61	2.01^**	1.53–2.63	2.87^**	1.96–2.67	2.29^**	1.38–3.82	2.70^**	1.55–4.68	2.14^**	1.58–2.90	2.07^**	1.48–2.89	2.35^**	1.26–4.39	2.51^**	1.82–3.47

Reference group in each variable is omitted. OR, odds ratio; CI, confidence interval.

P < 0.05,

^**

P < 0.01.