Table 4 The worst-case scenarios of physical, mental and autonomy decline in frail, pre-frail and robust persons according to the Puts, Fried and Steverink–Slaets models in the Crystal population

1.68 (0.94–3.01); p = 0.08

0.73 (0.47–1.14); p = 0.16

1.47 (0.84–2.57); p = 0.18

1.44 (0.79–2.64); p = 0.24

0.34 (0.16–0.71); p = 0.05

1.23 (0.69–2.21); p = 0.47

(0.38 (0.24–1.21); p = 0.13)*

1.22 (0.79–1.86); p = 0.36

2.08 (1.92–3.34); p = 0.003

1.08 (0.71–1.64); p = 0.73

(1.54 (0.91–2.60); p = 0.11)*

1.40 (0.89–2.22); p = 0.15

1.93 (1.55–3.21) p = 0.012

1.49 (0.94–2.35); p = 0.09

(1.38 (0.80–2.40); p = 0.13)*

1.37 (0.72–2.60); p = 0.34

2.44 (1.21–4.94); p = 0.013

(1,73 (0.82–3.64); p = 0.15)*