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Table 3 Multiple logistic regression analysis of factors associated with C-section delivery during the pandemic and pre-pandemic periods

From: An increase in cesarean section rate during the first wave of COVID-19 pandemic in Iran

Variable

Pandemic period

Pre-pandemic period

AOR

95% CI for OR

P value

AOR

95% CI for OR

P value

Lower

Upper

Lower

Upper

Maternal age (year)

2.46

2.43

2.49

.001

1.09

1.090

1.092

.001

Gestational age (week)

37–42

1

   

1

   

 < 37

1.56

1.53

1.60

.001

1.57

1.53

1.60

.001

 > 42

.60

.53

.69

.001

.74

.64

.84

.001

Parity

.81

.80

.83

.001

.82

.80

.83

.001

Abortion

1.22

1.21

1.24

.001

1.13

1.12

1.13

.001

Living child

.88

.87

.90

.001

.94

.93

.96

.001

Birth weight (gr)

2500–4000

1

   

1

   

 < 2500

1.18

1.15

1.21

.001

1.20

1.17

1.23

.001

 > 4000

1.38

1.34

1.43

.001

1.42

1.37

1.46

.001

Mother’s education

Illiterate

1

   

1

   

Primary education

1.04

1.02

1.07

.001

1.22

1.18

1.25

.001

Secondary education

1.05

1.03

1.08

.001

1.98

1.93

2.03

.001

Academic

1.02

1.00

1.05

.050

3.04

2.96

3.12

.001

  1. *P < 0.05 AOR Adjusted odds ratio, CI Confidence interval