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Table 4 Crude and multivariable-adjusted odds ratio and 95% confidence interval for the psychosomatic complaints profiles across tertiles of the dietary inflammatory index

From: The relationship between dietary inflammatory index and psychosomatic complaints profiles: results from SEPAHAN cross-sectional study

  Tertiles of the dietary inflammatory index P trend1
1 (−5.55, − 2.60) 2 (−2.61, − 1.52) 3 (−1.53, 4.61)
n 939 940 939  
Psychological somatic complaints profile
 Crude 1 (Reference) 1.04 (0.86, 1.25) 1.40 (1.16, 1.69) < 0.0001
 Model 1 1 (Reference) 1.16 (0.95, 1.43) 1.69 (1.34, 2.12) < 0.0001
 Model 2 1 (Reference) 1.10 (0.88, 1.37) 1.65 (1.29, 2.10) < 0.0001
 Model 3 1 (Reference) 1.09 (0.87, 1.37) 1.65 (1.29, 2.12) < 0.0001
 Model 4 1 (Reference) 1.05 (0.82, 1.34) 1.44 (1.10, 1.89) 0.009
Gastrointestinal somatic complaints profile
 Crude 1 (Reference) 1.12 (0.91, 1.37) 1.22 (0.99, 1.49) 0.058
 Model 1 1 (Reference) 1.24 (0.99, 1.54) 1.50 (1.18, 1.92) 0.001
 Model 2 1 (Reference) 1.23 (0.97, 1.55) 1.45 (1.12, 1.88) 0.005
 Model 3 1 (Reference) 1.24 (0.98, 1.58) 1.49 (1.14, 1.94) 0.003
 Model 4 1 (Reference) 1.21 (0.94, 1.56) 1.32 (1.00, 1.75) 0.048
Neuro-skeletal somatic complaints profile
 Crude 1 (Reference) 1.00 (0.79, 1.27) 1.35 (1.06, 1.73) 0.019
 Model 1 1 (Reference) 1.08 (0.84, 1.39) 1.59 (1.18, 2.13) 0.003
 Model 2 1 (Reference) 1.19 (0.90, 1.57) 1.66 (1.21, 2.28) 0.002
 Model 3 1 (Reference) 1.20 (0.90, 1.59) 1.69 (1.22, 2.34) 0.002
 Model 4 1 (Reference) 1.23 (0.90, 1.67) 1.56 (1.10, 2.22) 0.013
Pharyngeal -respiratory somatic complaints profile
 Crude 1 (Reference) 1.14 (0.94, 1.38) 1.22 (1.01, 1.48) 0.035
 Model 1 1 (Reference) 1.14 (0.93, 1.39) 1.29 (1.04, 1.62) 0.023
 Model 2 1 (Reference) 1.18 (0.95, 1.46) 1.32 (1.04, 1.68) 0.022
 Model 3 1 (Reference) 1.17 (0.94, 1.46) 1.37 (1.07, 1.74) 0.011
 Model 4 1 (Reference) 1.14 (0.91, 1.43) 1.23 (0.96, 1.58) 0.102
  1. 1From Mantel-Haenszel extension chi-square test. Tertile 1: low pro-inflammatory properties, tertile 2: medium pro-inflammatory properties, and tertile 3: high pro-inflammatory properties
  2. Model 1: adjustment was made for age, sex, and energy (kcal/d). Model 2: additional adjustment was made for marital status, education, smoking, and physical activity. Model 3: adjusted for body mass index (BMI). Model 4: anti-psychotropic medicines, medical history of diseases, and stressful life events were additionally adjusted