Table 6 Association of the Primary Care Frailty Index (PC-FI) with baseline functional measures and incident clinical conditions in the external validation dataset (SNAC-K).

From: Frailty detection among primary care older patients through the Primary Care Frailty Index (PC-FI)

 

Unadjusted OR (95% CI)

Age and sex adjusted OR (95% CI)

AUC from unadjusted models

Baseline functional measures

≥ 1 ADL limitation

4.89 (4.16–5.70)

2.75 (2.30–3.31)

0.85

≥ 1 IADL limitation

6.27 (5.39–7.34)

3.29 (2.77–3.92)

0.83

Walking speed < 0.8 m/s

6.81 (5.86–7.96)

3.16 (2.67–3.76)

0.81

Low grip strength

2.78 (2.36–3.29)

1.51 (1.25–1.83)

0.66

Physical frailty (Frailty Phenotype)

8.28 (6.79–10.20)

4.25 (3.41–5.33)

0.84

Chair stand test > 17 s

4.55 (3.97–5.23)

2.10 (1.81–2.45)

0.75

Incident clinical conditions

3-year injurious falls

2.04 (1.77–2.34)

1.30 (1.09–1.54)

0.68

≥ 1 ADL limitation, 6 years*

4.02 (3.09–5.25)

2.12 (1.56–2.87)

0.77

≥ 1 IADL limitation, 6 years**

4.64 (3.59–6.03)

2.36 (1.76–3.17)

0.73

Incident dementia, 6 years***

1.85 (1.41–2.41)

1.62 (1.22–2.14)

0.61

  1. SNAC-K Swedish National Study on Aging and Care in Kungsholmen, AUC area under the curve, ADL activities of daily living, IADL instrumental activities of daily living.
  2. *Persons with at least 1 ADL limitation at baseline were excluded; **persons with at least 1 IADL limitation at baseline were excluded; ***persons with a dementia diagnosis at baseline were excluded.
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