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Table 1 Baseline data of the entire sample and comparison between the two groups of adverse events

From: Factors associated with frailty in primary care: a prospective cohort study

  

Adverse event

 

Baseline variables

Total (N = 215)

Yes (n = 50)

No (n = 119)

p-value

Age; mean (SD)

79.4 (4.1)

81.7 (4.6)

78.4 (3.5)

<0.001

Sex: Female

136 (63)

32 (64)

76 (64)

0.987

Able to read and write

205 (95)

47 (94)

114 (96)

0.695

Living with spouse of family member

162 (75)

35 (70)

88 (74)

0.599

Weight loss in the last yearb

18 (8)

6 (12)

5 (4)

0.085

Low level of physical activity

22 (10)

11 (22)

6 (5)

0.001

Polipharmacy

131 (61)

41 (82)

65 (55)

0.001

Fall in the previous year

52 (24)

12 (24)

30 (25)

0.868

Hospital admission in the previous year

36 (17)

13 (26)

13 (11)

0.013

Self-perceived health

 Good/very good

136 (63)

26 (52)

91 (77)

0.003

 Fair

73 (34)

23 (46)

26 (22)

 

 Poor/very poor

7 (3)

1 (2)

2 (1)

 

Social risk (Gijon); median (Q1, Q3)

10 (9, 12)

10 (8, 12)

10 (9, 12)

0.442

Comorbidity: Yes

153 (72)

35 (70)

62 (52)

0.032

Presence of health problems a

 Body mass index >30 kg/m2

63 (29)

18 (36)

33 (28)

0.285

 Musculoskeletal disorders

52 (24)

17 (34)

21 (18)

0.020

 Diabetes under treatment

37 (17)

8 (16)

23 (19)

0.610

 Chronic obstructive pulmonary diseaseb

12 (6)

6 (12)

1 (1)

0.003

 Visual deficit b

8 (4)

3 (6)

2 (1)

0.154

 Auditory deficit b

6 (3)

1 (2)

4 (4)

1.000

  1. Adverse event: death or loss of independence defined as ≥10 % drop in Barthel’s score compared to baseline, during the follow-up. Data are expressed as frequencies (percentages), unless otherwise stated. For dichotomous variables one of the two categories are presented.
  2. aPresented health problems are not exclusive; a patient can suffer by more than one. P values in the last column refer to comparisons between the groups with and without adverse events (Yes vs. No). Age was compared with Student’s t test
  3. bthese variables were compared with Fisher’s exact test, the Chi-square test was implemented for the rest of the variables