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Table 2 Key results before and after propensity score matching

From: Association between spinal manipulative therapy and lumbar spine reoperation after discectomy: a retrospective cohort study

 

Before matching

After matching

SMT

Usual care

SMT

Usual care

Number of patients

380

1,931

378

378

Lumbar spine reoperation N (%)

28 (7%)

268 (14%)

28 (7%)

51 (13%)

RR (95% CI)

0.53 (0.37–0.77; P < 0.0005)

(reference)

0.55 (0.35–0.85; P = 0.0062)*

(reference)

  1. Abbreviations: spinal manipulative therapy (SMT), risk ratio (RR), 95% confidence intervals (95% CI)
  2. * primary outcome
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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