Table 3 Weighted multivariate logistic regression analysis examining the association between frailty index and recurrent pregnancy loss defined as two or more losses in reproductive-aged women.

From: The association between frailty and recurrent pregnancy loss in reproductive-aged women: a cross-sectional study

Variables

Model 1

Model 2

Model 3

Model 4

OR (95%CI)

P

OR (95%CI)

P

OR (95%CI)

P

OR (95%CI)

P

Frailty index

(continuous)

13.33

(5.95 ~ 29.83)

< 0.001

9.74

(3.89 ~ 24.39)

< 0.001

9.01

(3.33 ~ 24.36)

< 0.001

8.56

(3.09 ~ 23.72)

< 0.001

Frailty

        

Robust

1.00 (Reference)

 

1.00 (Reference)

 

1.00 Reference)

 

1.00 Reference)

 

Pre-frail

1.30 (1.07 ~ 1.58)

0.010

1.26 (1.03 ~ 1.54)

0.025

1.24 (1.01 ~ 1.52)

0.038

1.23 (1.01 ~ 1.52)

0.047

Frail

1.77 (1.36 ~ 2.30)

< 0.001

1.60 (1.21 ~ 2.11)

0.001

1.52 (1.13 ~ 2.06)

0.007

1.51 (1.11 ~ 2.05)

0.009

P for trend

< 0.001

 

0.001

 

0.004

 

0.007

 
  1. OR: Odds Ratio, CI: Confidence Interval.
  2. Model1: Crude;
  3. Model2: Adjusted for covariates: age, BMI, race, smoking, drinking, PIR, education level and marriage;
  4. Model3: Adjusted for covariates: age, BMI, race, smoking, drinking, PIR, education level, marriage, hypertension and diabetes;
  5. Model4: Adjusted for covariates: age, BMI, race, smoking, drinking, PIR, education level, marriage, hypertension, diabetes, birth control pills use and female hormones use.
  6. Values in bold indicate statistically significant differences (p < 0.05).
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