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Table 3 Crude and adjusted logistic regression models for effect of parity on occurrence of AIP

From: Effect of high parity on occurrence of anemia in pregnancy: a cohort study

 

Crude

Multi-level logistic regression

Parity

RR

95% CI*

RR

95% CI

Dichotomous parity

    

   LP (< 5)

1.00

-

1.00

-

   HP (≥ 5)

4.37

(3.32, 5.77)

2.92

(2.02, 4.59)

Categorical parity

    

   1

2.32

(1.45, 3.70)

1.09

(0.48, 1.88)

   2-3

1.00

-

1.00

-

   4-5

1.20

(0.73, 1.97)

1.14

(0.42, 1.99)

   6-7

4.07

(2.61, 6.35)

3.01

(2.06, 7.02)

   8-9

9.98

(6.95, 12.05)

5.67

(3.55, 13.16)

   ≥ 10

7.75

(4.78, 12.55)

4.32

(2.71, 14.25)

  1. * RR refers to Risk Ratio; 95% CI refers to 95% confidence intervals.
  2. † Adjusted for maternal age, educational level, family income level, year of delivery, past history of AIP, inter-pregnancy time, and past history of hematological disorders.