Table 5 ORsa of NPC and corresponding 95% CIs on tertiles of factor scores in strata of age, tobacco smoking, and alcohol drinking

From: Nutrient-based dietary patterns and nasopharyngeal cancer: evidence from an exploratory factor analysis

  

OR (95% CI), tertile category

 

Dietary pattern

Stratum b

I c

II

III

P strata d

Animal products

Age⩽52 years

1

0.95 (0.47–1.92)

2.87 (1.49–5.55)

0.495

 

Age>52 years

1

1.58 (0.78–3.22)

2.67 (1.36–5.24)

 
 

Never/former smoker

1

1.26 (0.69–2.29)

2.45 (1.37–4.39)

0.852

 

Current smoker

1

1.44 (0.58–3.55)

3.73 (1.60–8.66)

 
 

Alcohol drinker ⩽14.5 drinks per week

1

1.61 (0.81–3.19)

3.03 (1.56–5.91)

0.478

 

Alcohol drinker >14.5 drinks per week

1

0.95 (0.46–1.94)

2.39 (1.24–4.62)

 

Starch rich

Age⩽52 years

1

0.10 (0.52–1.93)

1.67 (0.81–3.41)

0.116

 

Age>52 years

1

2.76 (1.35–5.61)

3.32 (1.57–7.02)

 
 

Never/former smoker

1

1.27 (0.73–2.21)

1.95 (1.08–3.52)

0.447

 

Current smoker

1

2.56 (1.02–6.41)

2.78 (1.07–7.24)

 
 

Alcohol drinker⩽14.5 drinks per week

1

1.31 (0.70–2.45)

2.70 (1.35–5.43)

0.290

 

Alcohol drinker >14.5 drinks per week

1

1.96 (0.92–4.15)

1.70 (0.80–3.63)

 

Vitamins and fibre

Age⩽52 years

1

0.82 (0.42–1.58)

0.72 (0.38–1.34)

0.667

 

Age>52 years

1

0.54 (0.29–1.03)

0.61 (0.32–1.17)

 
 

Never/former smoker

1

0.60 (0.35–1.04)

0.60 (0.35–1.05)

0.952

 

Current smoker

1

0.57 (0.26–1.27)

0.62 (0.28–1.38)

 
 

Alcohol drinker ⩽14.5 drinks per week

1

0.38 (0.20–0.73)

0.46 (0.24–0.87)

0.211

 

Alcohol drinker >14.5 drinks per week

1

1.09 (0.57–2.07)

0.96 (0.51–1.80)

 

AUFAs

Age⩽52 years

1

0.58 (0.28–1.21)

1.50 (0.79–2.84)

0.395

 

Age>52 years

1

1.15 (0.60–2.22)

1.66 (0.87–3.14)

 
 

Never/former smoker

1

0.76 (0.42–1.35)

1.34 (0.79–2.30)

0.616

 

Current smoker

1

0.91 (0.37–2.23)

1.92 (0.83–4.44)

 
 

Alcohol drinker ⩽14.5 drinks per week

1

0.78 (0.41–1.49)

1.31 (0.70–2.44)

0.365

 

Alcohol drinker >14.5 drinks per week

1

0.70 (0.34–1.46)

1.75 (0.89–3.44)

 

VUFAs

Age⩽52 years

1

1.42 (0.73–2.79)

2.01 (1.04–3.91)

0.669

 

Age>52 years

1

0.94 (0.47–1.86)

1.77 (0.94–3.32)

 
 

Never/former smoker

1

1.31 (0.75–2.31)

1.90 (1.08–3.35)

0.690

 

Current smoker

1

0.97 (0.42–2.23)

2.08 (0.95–4.53)

 
 

Alcohol drinker ⩽14.5 drinks per week

1

0.98 (0.53–1.84)

2.23 (1.15–4.30)

0.339

 

Alcohol drinker >14.5 drinks per week

1

1.44 (0.70–2.96)

1.55 (0.81–2.96)

 
  1. Abbreviations: AUFAs=animal unsaturated fatty acids; CI=confidence interval; OR=odds ratio; VUFAs=vegetable unsaturated fatty acids.
  2. aEstimates from multiple logistic regression models adjusted for age, sex, area of residence, education, year of interview, tobacco smoking, and alcohol drinking, when appropriate. Results refer to the composite models including all the five factors simultaneously.
  3. b52 years was the median age in the overall sample; 14.5 drinks per week was the median alcohol consumption in the overall sample.
  4. cReference category.
  5. dP-value for heterogeneity across strata.
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