Table 6 Logistic regression analyses of caesarean delivery – pre/original NCMS, post/current NCMS in two counties

Maternal characteristics

Maternal age (24-31y as control)

≤ 23y

0.768(0.551-1.072)

0.729(0.516-1.030)

0.809(0.558-1.171)

0.730(0.418-1.275)

≥ 32y

1.499(0.983-2.285)

1.090(0.686-1.732)

1.512(1.043-2.192)*

1.263(0.643-2.480)

Maternal education years^#

1.000(0.948-1.056)

1.072(1.005-1.143)*

1.032(0.980-1.085)

1.110(1.013-1.218)*

Husband education years^#

1.043(0.975-1.114)

1.009(0.937-1.086)

1.031(0.963-1.104)

0.987(0.886-1.099)

Previous adverse pregnant outcome^@

1.324(0.757-2.315)

1.753(1.272-2.414)**

1.618(0.967-2.708)

1.317(0.806-2.151)

Systematic antenatal care^@

0.797(0.599-1.059)

1.269(0.938-1.717)

1.345(0.989-1.828)

0.727(0.456-1.159)

Numbers of ultrasound examination^#

1.309(1.179-1.452)**

1.164(1.043-1.298)**

1.146(1.036-1.267)**

1.183(1.019-1.374)*

County hospitals

2.378(1.828-3.094)**

1.535(1.154-2.043)**

1.079(0.807-1.441)

0.460(0.283-0.749)**

Fetal characteristics ^@

First baby

1.581(1.071-2.334)*

1.055(0.696-1.600)

1.203(0.840-1.722)

1.338(0.690-2.595)

Big baby

1.146(0.763-1.722)

1.304(0.846-2.009)

0.817(0.488-1.367)

0.650(0.285-1.480)

Male baby

1.012(0.782-1.310)

1.046(0.787-1.391)

1.297(0.984-1.709)

0.892(0.581-1.368)

Preterm baby

0.653 (0.381-1.120)

0.920(0.571-1.482)

0.826(0.461-1.479)

1.010(0.459-2.226)

Economic characteristics

Household annual income per capita (=3000yuan ascontrol)

3001-7499yuan.

0.960(0.715-1.290)

0.985(0.652-1.490)

1.154(0.842-1.581)

0.868(0.456-1.653)

≥7500yuan

1.303(0.892-1.903)

0.979(0.630-1.521)

1.112(0.736-1.681)

0.690(0.355-1.344)

NCMS participation

Proportional reimbursement

1.189(0.871-1.624)

-

-

-

Fixed reimbursement

-

0.931(0.613-1.415)

-

1.007(0.560-1.812)