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Table 4 Odds ratio and 95% confidence interval for the occurrence of PCOS across tertiles of different types of meat

From: The association between meat consumption and polycystic ovary syndrome in Iranian women: a case–control study

Variable

Tertiles of red meat intake

P value

P trend

PCOS

T1

T2

T3

  

 Crude

1.00

1.33 (0.68_2.61)

4.29 (2.13_8.64)

<0.001

< 0.001

 Model I*

1.00

1.27 (0.63_2.56)

3.40 (1.64_7.07)

0.001

0.001

 Model II**

1.00

1.37 (0.66_2.84)

3.87 (1.78_8.40)

0.001

0.001

Tertiles of organ meat intake

PCOS

T1

T2

T3

  

 Crude

1.00

0.64 (0.33_1.26)

1.86 (0.97_3.57)

0.061

0.075

 Model I*

1.00

0.60 (0.30_1.21)

1.39 (0.70_2.76)

0.344

0.415

 Model II**

1.00

0.57 (0.28_1.17)

1.36 (0.67_2.75)

0.390

0.480

Tertiles of processed meats intake

PCOS

T1

T2

T3

  

 Crude

1.00

1.54(0.80_2.98)

2.92(1.50_5.68)

0.002

0.002

 Model I*

1.00

1.42(0.72_2.80)

2.08(1.02_4.22)

0.042

0.041

 Model II**

1.00

1.42(0.71_2.81)

2.15 (1.05_4.39)

0.035

0.035

Tertiles of poultry intake

PCOS

T1

T2

T3

  

 Crude

1.00

0.82 (0.41_1.65)

1.84 (0.98_3.45)

0.057

0.059

 Model I*

1.00

0.81 (0.40_1.67)

1.37 (0.70_2.67)

0.350

0.370

 Model II**

1.00

0.81 (0.39_1.68)

1.35 (0.69_2.66)

0.374

0.388

Tertiles of fish intake

PCOS

T1

T2

T3

  

 Crude

1.00

0.71 (0.36_1.37)

1.28 (0.66_2.47)

0.450

0.455

 Model I*

1.00

0.59 (0.29_1.20)

0.91 (0.45_1.83)

0.803

0.953

 Model II**

1.00

0.58 (0.29_1.19)

0.89 (0.44_1.82)

0.764

0.754

  1. These values are odds ratios (95% CIs)
  2. *Third tertile compared to first tertile
  3. Obtained from logistic regression
  4. *Adjusted for total energy intake
  5. **Additionally adjusted for marital status, physical activity, education, pregnancy history, chronic disease history