Nursing Risk Assessment for the Elderly and Its Data-Driven Optimization Model

Logistic regression analysis of variable assignment

	Variable	Valuation
Y	Nursing risk	Occurs=1	Not ours=0
X1	Gender	Male=0	Female=1
X2	Age	60-69=1	70-79=2	80-89=3	≥90=4
X3	CGRA evaluation	45-74=1	75-104=2	≥105=4
X4	Check-in time	1-5 year=1	6-10 year=2	≥11 year=3
X5	Sight	Normal=0	Abnormal=1
X6	Chronic disease	No =0	Yes =1
X7	Number of chronic diseases	≥3=0	<3=1	Null=2
X8	Long-term dose	No =0	<3 =1	≥3=2
X9	Anti-hypertensive	No =0	Yes =1
X10	Heart drug	No =0	Yes =1
X11	Antianxiety drug	No =0	Yes =1
X12	Static balance	Yes =0	No =1
X13	Physical ability	Yes =0	No =1
X14	Dynamic balance	Yes =0	No =1
X15	Regular routine	Yes =0	No =1
X16	Physical ability	Yes =0	No =1
X17	Physical exercise	No =0	Yes =1
X18	Cluttered storage in passage	Yes =0	No =1
X19	Furniture fixture	Yes =0	No =1
X20	Using walking aid	No =0	Yes =1
X21	Grib bar installation	Yes =0	No =1

Logistic regression analysis of multiple factors of nursing risk in the elderly

	B	S.E.	Wald	P	Exp(B)	C.I.(95%)
						Lower	Upper
Gender	0.750	0.281	7.698	0.005	2.180	1.358	3.361
Age	0.524	0.151	13.251	0.001	1.677	1.264	88
CGRA evaluation	0.538	0.159	14.635	0.002	1.708	1.260	98
Sight	0.463	0.228	4.726	0.004	1.613	1.051	2.385
Long-term dose	0.511	0.214	4.742	0.02	1.574	1.045	2.372
Dynamic balance	0.882	0.393	5.008	0.02	2.379	1.122	4.900
Furniture fixture	1.538	0.409	15.626	0.023	4.476	2.175	9.409
Using walking aid	0.671	0.221	10.092	0.000	1.978	1.204	2.919
Grib bar installation	0.668	0.239	5.378	0.018	1.869	1.109	3.323
Chronic disease	0.534	0.209	11.061	0.001	1.782	1.273	2.304
Physical exercise	-0.755	0.352	4.720	0.032	0.507	0.251	0.942

The incidence of nursing risk in elderly care institutions

The number of risk of nursing	Sample size (n=305)	Nursing risk frequency	Incidence rate
1	305	83	27.2%
≥2	305	58	19%
Total	305	141	46.2%

Influencing factors of nursing risk occurrences in elderly people

Danger factors		n	Risk occurrences	Percentage	χ2	P
Gender	Male	62	40	64.5%	9.122	0.000
	Female	79	28	35.4%
Age	[60,70)	14	4	28.6%	16.564	0.001
	[70,80)	38	14	36.8%
	[80,90)	79	44	55.7%
	≥90	10	5	50.0%
CGRA evaluation	[45,75)	25	8	32.0%	20.109	0.000
	[75,105)	61	30	49.2%
	≥105	55	28	50.9%
Check-in time	[1,5)	109	50	45.9%	7.930	0.025
	[5,11)	19	11	57.9%
	≥11	13	6	46.2%
Sight	Normal	66	29	43.9%	9.046	0.000
	Abnormal	75	35	46.7%
Chronic disease	Yes	107	53	49.5%	16.513	0.001
	No	34	10	29.4%
Number of chronic diseases	≥3	41	23	56.1%	20.133	0.000
	≤3	77	35	45.5%
	Null	23	5	21.7%
Long-term dose	≥3	108	51	47.2%	18.247	0.002
	≤3	9	5	55.6%
	Null	24	7	29.2%
Anti-hypertensive	Yes	82	41	50.0%	10.760	0.003
	No	59	23	39.0%
Heart drug	Yes	50	27	54.0%	10.744	0.000
	No	91	39	42.9%
Antianxiety drug	Yes	4	3	75.0%	4.610	0.036
	No	137	65	47.4%
Static balance	Normal	95	46	48.4%	9.845	0.002
	Abnormal	46	20	43.5%
Physical ability	Normal	84	31	36.9%	16.147	0.000
	Abnormal	57	31	54.4%
Dynamic balance	Normal	87	34	39.1%	21.362	0.001
	Abnormal	54	33	61.1%
Regular routine	Yes	128	52	40.6%	35.189	0.000
	No	13	11	84.6%
Physical exercise	Yes	82	34	41.5%	6.917	0.031
	No	59	32	54.2%
Cluttered storage in passage	Yes	99	45	45.5%	7.413	0.033
	No	42	22	52.4%
Furniture fixture	Yes	27	8	29.6%	14.663	0.000
	No	114	59	51.8%
Using walking aid	Yes	84	41	48.8%	14.941	0.000
	No	57	21	36.8%
Grib bar installation	Yes	51	21	41.2%	5.669	0.027
	No	90	47	5%

The comparison of nursing risk incidence and nursing satisfaction

Group	Risk incidence (%)	Satisfaction evaluation
		Unsatisfied	Good	Satisfied
Control group	8 (10.67)	2 (2.7)	31 (41.3)	42 (56)
Experimental group	0 (0)	0 (0)	16 (21.3)	59 (78.7)
χ2	4.138	1.022	6.978	7.698
P	0.031	0.135	0.004	0.005

Comparison of the incidence of elderly nursing risk with each gender and age

Item		Number of risks=1		χ2	P
		Count	Percentage
Gender	Male	17	12.06%	14.338	0.002
	Female	30	21.28%
Age	[60,70)	4	2.84%	22.687	0.001
	[70,80)	15	10.64%
	[80,90)	62	43.97%
	≥90	3	2.13%
Item		Number of risks≥2		χ2	P
		Count	Percentage
Gender	Male	41	29.08%	14.054	0.002
	Female	53	37.59%
Age	[60,70)	2	1.42%	23.387	0.000
	[70,80)	12	8.51%
	[80,90)	39	27.66%
	≥90	4	2.84%

The comparison of nursing risk incidence assessment of experimental group

Time	Low risk	Medium risk	High risk	Assessment of nursing risk
Admission	42 (56)	18 (24)	15 (20)	39.85±4.16
Discharge	74 (98.7)	1 (1.3)	0 (0)	19.32±3.11
χ2/t	32.358	14.873	15.981	26.872
P	0.000	0.000	0.000	0.000