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. 2008 Apr 29;6:30. doi: 10.1186/1477-7525-6-30

Table 1.

Characteristics of the participants (n = 52 per group)

Continuous variables G1 Mean (SD) G2 Mean (SD) G3 Mean (SD) p value
Functional independence (SMAF;/87) 1.4 (1.6) a 10.2 (4.1) b 29.0 (7.6) < 0.001c
Age (years) 70.2 (7.0) a 74.9 (8.4) 75.8 (7.6) < 0.001d
Associated conditions (#) 0.8 (1.2) a 1.5 (1.4) b 3.3 (2.3) < 0.001d

Categorical variables Frequency (%) Frequency (%) Frequency (%)

Gender (women) 40 (76.9) a 28 (53.8) 26 (50) 0.01e
Education (years):
 - 1–6 4 (7.7) 14 (26.9) 14 (26.9) 0.28d
 - 7–11 27 (51.9) 23 (44.2) 23 (44.2)
 - 12–14 18 (34.6) 8 (15.4) 9 (17.3)
 - > 15 3 (5.7) 7 (13.5) 6 (11.6)
Residential status:
 - Owner 29 (55.8) f 24 (46.2) 16 (30.8) 0.04e
 - Tenant 22 (42.3) 22 (42.3) 20 (38.5)
 - Other 1 (1.9) 6 (11.5) 16 (30.8)
Income (Can $):
 - < 15,000 11 (21.2)a 21 (40.4) 19 (36.5) 0.006d
 - 15,001- 25,000 9 (17.3) 13 (25.0) 14 (26.9)
 - > 25,001 21 (40.4) 16 (30.8) 15 (28.8)
Missing Data 11 (21.2) 2 (3.8) 4 (7.7)
Classification of diseases (ICD-10):
 - Diseases of the nervous system 1 (1.9) a 5 (9.6) b 22 (42.3) < 0.001e
 - Diseases of the circulatory system 26 (50.0) 17 (32.7) 7 (13.5)
 - Injury, poisoning and certain other consequences of external causes (including hip fracture) 1 (1.9) 12 (23.1) 9 (17.3)
 - Diseases of the musculoskeletal system and connective tissue 7 (13.5) 12 (23.1) 8 (15.4)
 - Other 17 (32.7) 6 (11.5) 6 (11.5)
Self-perceived health:
 - Excellent 27 (51.9) a 10 (19.2) b 1 (1.9) < 0.001c
 - Good 21 (40.4) 25 (48.1) 16 (30.8)
 - Fair 4 (7.7) 14 (26.9) 26 (50.0)
 - Poor 0 (0) 3 (5.8) 9 (17.3)
Stability of self-perceived capacities (Yes) 52 (100.0) a 39 (75.0) 42 (80.8) 0.001 e
Self-perceived mood (not depressed) 48 (92.3) f 42 (80.8) 35 (67.3) 0.006e

G1: SMAF < 5 G2: SMAF [5, 19] G3: SMAF > 19 ICD-10: International Classification of Diseases

a : G1 differs significantly from the other two groups on these variables (p < 0.017).

b : G2 differs significantly from G3 on these variables (p < 0.017).

c : p value associated with ANOVA. A significant value (p < 0.05) indicates a difference between the three groups.

d : p value associated with Welch F-ratio. A significant value (p < 0.05) indicates a difference between the three groups.

e: χ2 test

f : G1 differs significantly only from G3 on these variables (p < 0.017).