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Table 1 Population characteristics for the four clinical groups

From: Shorter length of hospital stay for hip fracture in those with dementia and without a known diagnosis of osteoporosis in the USA

Characteristic

All

N (%)

Clinical groups

P *

Dementia Only

N (%)

OP Only

N (%)

Both OP and dementia

N (%)

Neither OP nor dementia

N (%)

Sample size

2175 (100)

279 (13)

774 (36)

247 (11)

875 (40)

 

Sex, Female

1679 (77)

176 (63)

708 (91)

224 (90)

571 (65)

<.01

Race, White

2006 (92)

240 (86)

731 (94)

227 (91)

808 (92)

<.01

Age

 65–84 years

1030 (47)

123 (44)

334 (43)

93 (37)

480 (54)

<.01

 85+ years

1145 (53)

156 (56)

440 (56)

154 (62)

395 (45)

 Median (IQR)

85 (79, 90)

86 (80, 90)

86 (80, 90)

87 (83, 91)

83 (77, 89)

 

Fracture type

     

<.01

 Femoral Neck

1114 (51)

161 (57)

362 (46)

113 (45)

478 (54)

 

 Intertrochanteric

960 (44)

109 (39)

372 (48)

126 (51)

353 (40)

 

 Subtrochanteric

101 (5)

< 10 (3)

40 (5)

< 10 (3)

44 (5)

 

Surgical repair of fracture

1980 (91)

247 (88)

710 (91)

218 (88)

805(92)

.12

Comorbidities

 Congestive heart failure

1097 (50)

137 (49)

404 (52)

148 (59)

408 (46)

<.01

 Chronic kidney disease

848 (39)

110 (39)

291 (37)

113(45)

334 (38)

.13

 Diabetes

931 (43)

120 (43)

308 (39)

105 (42)

398 (45)

.14

 Hypertension

2021 (93)

262 (93)

729 (94)

236 (95)

794 (90)

.01

 Acute myocardial infarction

205 (9)

19 (6)

66 (8)

23 (9)

97 (11)

.12

 Ischemic Heart Disease

1474 (68)

193 (69)

530 (68)

183 (74)

568 (64)

.04

 Hyperlipidemia

1767 (81)

232 (83)

656 (84)

198 (80)

681 (77)

<.01

 Depression

1154 (53)

190 (68)

391 (50)

180 (72)

393 (44)

<.01

 Arthritisa

1612 (74)

193 (69)

625 (80)

214 (86)

580 (66)

<.01

  1. Abbreviations: IQR interquartile range, OP osteoporosi
  2. *P values are for Chi-square tests examining the distribution across the four groups, except for age: Kruskal-Wallis was used
  3. aRheumatoid arthritis or osteoarthritis