Analysis of hospitalization costs related to fall injuries in elderly patients

Table 2 Univariate analysis of the hospitalization costs for elderly inpatients due to falls (RMB)

Variable	Frequency (n)	Percentage of total cases (%)	Estimated cost [M (P25, P75)]	R value	P value
Gender				0.037	0.032a
Male	1218	36.2	41317.97 (14486.61, 66018.59)
Female	2144	63.8	45469.65 (23487.13, 65686.64)
Age (yr)				0.060	0.000a
60-69	1221	36.3	42378.54 (21803.38, 62729.14)
70-79	1052	31.3	42991.27 (19400.01, 63875.40)
≥ 80	1089	32.4	51642.56 (16687.27, 69590.67)
Operation times				0.533	0.000a
0 (h)	672	20.0	10026.07 (5212.80, 21657.76)
1-2	2456	73.0	50940.59 (32230.26, 67879.28)
3-5	234	7.0	76253.72 (44619.24, 110755.35)
LOS (d)				0.520	0.000a
0-14	2410	71.7	36806.75 (11381.93, 53622.53)
15-30	721	21.4	66957.46 (50485.18, 83432.30)
31-90	198	5.9	106569.47 (75836.07, 144853.33)
≥ 91	33	1.0	137591.53 (69378.56, 223584.67)
Payment method				-0.051	0.003a
Worker medical insurance	2022	60.1	44952.14 (21700.61, 66985.45)
Resident medical insurance	1050	31.4	44962.41 (16506.52, 64478.55)
Commercial medical insurance	1	0.0	1562060.23
Individual medical care	4	0.1	35922.53 (28653.18, 113184.59)
Public medical care	280	8.3	41233.85 (9716.64, 63933.44)
Other	5	0.1	56320.25 (35953.57, 157804.79)
Wound position				0.267	0.000a
None	2	0.0	11198.42 (5451.68, 0.00)
Trunk	135	4.0	26295.28 (8463.58, 65953.88)
Upper limbs	394	11.7	39361.70 (8891.22, 54170.21)
Head and neck	434	12.9	20706.67 (9742.51, 42939.47)
Prosthesis	7	0.2	43500.02 (11673.20, 115267.90)
Organ	42	1.3	28087.94 (12783.60, 67501.29)
Spinal cord	736	21.9	41242.70 (26249.93, 52136.72)
Lower limbs	1612	48.0	29935.61 (57052.51, 72001.03)
Wound type				0.264	0.000a
Dislocation	39	1.2	10786.93 (6307.10, 39300.03)
Contusion	216	6.4	13295.61 (7904.67, 25306.53)
Soft tissue injury	63	1.9	21142.78 (8768.91, 40579.88)
Joint injury	143	4.2	18130.31 (10022.10, 53393.29)
Visceral rupture	40	1.2	36412.73 (12834.19, 57043.39)
Fracture	2831	84.2	48665.48 (26412.69, 68.344)
Other	30	0.9	12262.80 (5962.26, 46411.80)
Operation type				0.642	0.000a
None	673	20.0	5223.96 (10030.03, 21687.66)
Fixation	271	8.0	5603.54 (9215.08, 16469.74)
Debridement and suturing	194	5.8	16671.87 (52139.40, 90254.74)
Surgical exploration	117	3.5	19388.44 (29844.72, 52741.55)
Open reduction	1296	38.5	37836.56 (46549.68, 62950.43)
Replacement	682	20.3	57135.64 (67049.09, 79342.16)
Decompression	56	1.7	63967.42 (85712.16, 108458.43)
Other	73	2.2	11879.72 (36707.28, 93072.05)

All costs are expressed in 2019 RMB.

^aP < 0.05.