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Table 1 Baseline characteristics of participants

From: Obesity may increase survival, regardless of nutritional status: a Swedish cohort study in nursing homes

  Whole sample MNA-SF
0–7
MNA-SF
8–11
MNA-SF
12–14
p
Number 47,686 6970 21,459 19,257 < 0.001
Age, mean (SD) 86.3 (7.4) 86.7 (7.2) 86.3 (7.4) 86.3 (7.4) < 0.001
Women, n (%) 33,374 (70.0) 5121 (73.5) 15,231 (71.0) 13,022 (67.6) < 0.001
Level of education, n (%)     < 0.001
  < 9 years 26,534 (57.1) 3666 (54.2) 11,811 (56.5) 11,057 (58.9)  
 9–12 years 15,744 (33.9) 2435 (36.0) 7104 (34.0) 6205 (33.0)  
  > 12 years 4159 (9.0) 669 (9.9) 1975 (9.5) 1515 (8.1)  
Incomea, mean (SD) 167 (202) 164 (188) 165 (193) 170 (217) 0.013
Dementia, n (%) 15,193 (31.9) 2948 (42.3) 7628 (35.5) 4617 (24.0) < 0.001
Hip fracture, n (%) 10,399 (21.8) 2066 (29.6) 4992 (23.3) 3341 (17.3) < 0.001
COPD, n (%) 2567 (5.4) 438 (6.3) 1142 (5.3) 987 (5.1) 0.001
Renal failure, n (%) 1227 (2.6) 180 (2.6) 532 (2.5) 515 (2.7) 0.46
Rheumatoid arthritis, n (%) 1059 (2.2) 161 (2.3) 509 (2.4) 389 (2.0) 0.048
Myocardial infarction, n (%) 6460 (13.5) 874 (12.5) 2799 (13.0) 2787 (14.5) < 0.001
Stroke, n (%) 10,764 (22.6) 1604 (23.0) 5016 (23.4) 4144 (21.5) < 0.001
Diabetes mellitus, n (%) 7765 (16.3) 989 (14.2) 3336 (15.5) 3440 (17.9) < 0.001
BMI, mean (SD) 25.1 (5.2) 20.8 (4.5) 24.4 (4.9) 27.4 (4.5) < 0.001
BMI categories, n (%)      < 0.001
  < 18.5 3959 (8.3) 2288 (32.8) 1671 (7.8) 0 (0.0)  
 18.5–24.9 21,445 (45.0) 3641 (52.2) 11,385 (53.1) 6419 (33.3)  
 25.0–29.9 14,655 (30.7) 750 (10.8) 5728 (26.7) 8177 (42.5)  
  ≥ 30.0 7627 (16.0) 291 (4.2) 2675 (12.5) 4661 (24.2)  
BMI obesity class I-III, n (%)     < 0.001b
 30.0–34.9 5774 (12.1) 225 (3.2) 2034 (9.5) 3515 (18.3)  
 35.0–39.9 1419 (3.0) 46 (0.7) 493 (2.3) 880 (4.6)  
  ≥ 40.0 434 (0.9) 20 (0.3) 148 (0.7) 266 (1.4)  
MNA-SF, mean (SD) 10.4 (2.6) 5.6 (1.5) 9.8 (1.1) 12.8 (0.8) < 0.001
  1. Differences between groups (defined by MNA-SF categories) were analysed using chi-squared test for categorical variables and using Welch one-way analysis of variance tests for continuous variables. BMI Body mass index (kg/m2), COPD Chronic obstructive pulmonary disease, MNA-SF Mini Nutritional Assessment-Short Form, SD Standard deviation. aDisposable income, in 1000 SEK per year. bAnalyses of all BMI categories with obesity divided in class I, II, and III