Research Article

Traditional Dietary Pattern Increases Risk of Prostate Cancer in Argentina: Results of a Multilevel Modeling and Bias Analysis from a Case-Control Study

Table 5

Prostate cancer risk on dietary patterns estimates from multilevel logistic modeling (a) and ORs from bias analysis (b), Córdoba, Argentina (2008–2012).
(a)

Number of casesOR
(CI 95%)
value for trend

Traditional Pattern
 Quartile I 241 0.048
 Quartile II 391.60 (0.970–2.660) 0.065
 Quartile III 371.73 (1.167–2.575) 0.006
 Quartile IV472.54 (1.491–4.342)0.001
Prudent Pattern
 Quartile I 411 0.926
 Quartile II 280.70 (0.396–1.264) 0.243
 Quartile III 340.84 (0.540–1.310) 0.445
 Quartile IV441.31 (0.493–3.508)0.584
Carbohydrate Pattern
 Quartile I 221 0.069
 Quartile II 361.76 (1.254–2.479) 0.001
 Quartile III 482.67 (0.975–7.349)0.056
 Quartile IV412.10 (1.400–3.164)<0.001
Cheese Pattern
 Quartile I 331 0.720
 Quartile II 401.48 (0.690–3.202) 0.310
 Quartile III 371.34 (0.842–2.155)0.213
 Quartile IV371.02 (0.538–1.932)0.950

(b)

Bias analysis ORsPercentilesRatio
2.55097.52.5/97.5

Conventional 0.901.331.982.21
Systematic error 0.801.342.272.83
Systematic and random error 0.701.342.583.69

OR, odds ratio; CI, confidence interval. Age, BMI, energy intake, and occupational exposure were included in the MLR as covariates at first level, and family history of cancer was included at second level (variance 1.637, standard error 0.099, intraclass correlation coefficient 0.33, and median odds ratio 3.38).