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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Calcif Tissue Int. 2014 Feb;94(2):223–231. doi: 10.1007/s00223-013-9801-z

Table 3.

LOS in Hospital and Nursing Home or Rehabilitation Facility by BMI Group

BMI group
Significant P valuesa
Underweight (1) Non-obese (2) Obese (3)
Hospital LOS (days) (2) vs. (3)
n 30 891 260
 Median (25th, 75th) 5 (3, 12) 5 (3, 10) 6 (3, 14)
 Mean (SD) 11 (16) 10 (14) 12 (17)
Nursing home/rehabilitation center LOS
(days)
n 19 398 132
 Median (25th, 75th) 28 (14, 60) 20 (12, 36) 22 (12, 42)
 Mean (SD) 39 (29) 32 (35) 34 (33)

BMI body mass index, IQR quartile 1, quartile 3, LOS length of stay, SD standard deviation

a

Significant pairwise comparisons with P < 0.017 for both unadjusted and adjustedb means

b

Controlled for different comorbidities for each model. Hospital = hypertension, heart disease, cholesterol, asthma, emphysema, osteoarthritis and diabetes. Nursing home/rehab = heart disease, cholesterol, emphysema and osteoarthritis. Controlled for eight fracture types in each adjusted model: wrist, spine, rib, hip, pelvis, ankle, upper and lower leg