Table 2 Hourly and daily typical variation of P1NP and β-CTX-1 in control conditions

Hourly

P1NP

(ng·mL⁻¹)

Lehrskov et al. [32], Scott et al. [23], Evans et al. [15]

Participants n = 27

Observations n = 58

0.06 [− 7.5 to 5.5]

7.6 [6.8 to 8.5]^a

β-CTX-1

(ng·mL⁻¹)

Lehrskov et al. [32], Scott et al. [23], Evans et al. [15]

Participants n = 27

Observations n = 58

 − 0.13 [− 0.34 to 0.06]

0.11 [0.11 to 0.12]^a

Daily

P1NP

(ng·mL⁻¹)

Evans et al. [15], Scott et al. [16]

Participants n = 22

Observations n = 52

 − 0.39 [− 4.3 to 2.9]

5.7 [5.1 to 6.5]^a

β-CTX-1 (ng·mL⁻¹)

Evans et al. [15], Scott et al. [16]

Participants n = 22

Observations n = 52

 − 0.03 [− 0.54 to 0.30]

0.10 [0.09 to 0.11]^a