Table 4

Relationship between subsidence and patient-reported outcomes.

Authors (Year)Pain ScoreDisease-Specific FunctionOverall Quality of LifeOtherPower Analysis
Marchi et al (2013)12 Significant correlation
Higher-grade subsidence led to higher axial back pain (P = 0.029)
N/AN/AN/AN/A
Lequin et al (2014)57 No significant correlation
VAS: r = −0.2, P = 0.459
N/AN/AN/AN/A
Malham et al (2015)33 N/AN/AN/ANo significant correlation
MCID criteria (P > 0.05)
Underpowered
Oh et al (2017)50 No significant correlation
VAS: r = 0.017, P = 0.874
No significant correlation
ODI: r = −0.006, P = 0.956
No significant correlation
SF-36: r = 0.015, P = 0.886
N/AN/A
Rao et al (2017)29 No significant correlation
VAS: P = 0.36
No significant correlation
ODI: P = 0.55
No significant correlation
SF-12 mental component (P = 0.64)
SF-12 physical component (P = 0.69)
N/AN/A
Chang et al (2019)45 N/A Significant correlation
Subsidence led to higher ODI: 45.4–33.8, P = 0.02
Significant correlation
Subsidence led to lower SF-36: 33.6–41.4, P = 0.01
N/AN/A
  • Abbreviations: MCID, minimum clinically important difference; ODI, Oswestry Disability Index; SF-36, Short Form 36 Health Survey Questionnaire; VAS, visual analog scale.