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Table 4 Sensitivity analyses of the risk of low back pain according to metabolic syndrome, and metabolic syndrome and depressive symptoms

From: Estimating the impact of metabolic syndrome on low back pain and the joint effects of metabolic syndrome and depressive symptoms on low back pain: insights from the China Health and Retirement Longitudinal Study

Ìý

Cross-sectional

Longitudinal

Ìý

OR (95% CI)

HR (95% CI)

Sensitivity 1c

ÌýÌý

Combined MetS and DS b

ÌýÌý

No ²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

1.00 [Reference]

1.00 [Reference]

No ²Ñ±ð³Ù³§â€‰+ D³§

2.26 (1.90–2.70) ***

1.75 (1.48–2.037 ***

²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

0.79 (0.67–0.93) **

0.91 (0.80–1.03)

²Ñ±ð³Ù³§â€‰+ D³§

2.11 (1.76–2.52) ***

1.61 (1.36–1.92) ***

Sensitivity 2d

ÌýÌý

MetS a

ÌýÌý

No

1.00 [Reference]

1.00 [Reference]

Yes

0.85 (0.75–0.97) *

0.91 (0.82–1.02)

Combined MetS and DS b

ÌýÌý

No ²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

1.00 [Reference]

1.00 [Reference]

No ²Ñ±ð³Ù³§â€‰+ D³§

2.32 (1.95–2.77) ***

1.76 (1.51–2.05) ***

²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

0.75 (0.62–0.90) **

0.93 (0.82–1.07)

²Ñ±ð³Ù³§â€‰+ D³§

2.18 (1.82–2.61) ***

1.55 (1.32–1.81) ***

Sensitivity 3e

ÌýÌý

MetS a

ÌýÌý

No

1.00 [Reference]

1.00 [Reference]

Yes

0.84 (0.73–0.95) **

0.93 (0.83–1.03)

Combined MetS and DS b

ÌýÌý

No ²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

1.00 [Reference]

1.00 [Reference]

No ²Ñ±ð³Ù³§â€‰+ D³§

2.28 (1.92–2.71) ***

1.74 (1.49–2.03) ***

²Ñ±ð³Ù³§â€‰+ N´Ç¶Ù³§

0.73 (0.61–0.88) **

0.93 (0.82–1.07)

²Ñ±ð³Ù³§â€‰+ D³§

2.10 (1.76–2.51) ***

1.59 (1.35–1.86) ***

  1. Abbreviation DS, depressive symptoms; OR, odds ratio; HR, hazards ratio; CI, confidence interval; MetS, metabolic syndrome; DS, depressive symptoms
  2. a Adjusted for age, sex, residence, education level, marital status, smoking, alcohol consumption, social activity, functional disability, number of chronic diseases, body mass index, and depressive symptoms
  3. b Adjusted for age, sex, residence, education level, marital status, smoking, alcohol consumption, social activity, functional disability, number of chronic diseases, and body mass index
  4. *PÌý< 0.05,Ìý**P < 0.01, ***P &±ô³Ù; 0.001
  5. c Cut point of depressive symptoms was defined as a score greater than or equal to 12 on the 10-item Center for Epidemiological Studies Depression Scale
  6. d After excluding participants with memory-related diseases (n = 8854 in cross-sectiona analysis; n = 3449 in longitudinal analysis)
  7. e Pooled results based on 10 imputed data sets