Table 1 Demographic details and birth outcomes of total births in the studied periods

Mean Age years (SD)

31.37 (4.96)

31.68 (4.77)

< 0.0001

Mean birth weight in gm (SD)

3383 (452.29)

3448 (451.18)

< 0.0001

Spontaneous onset of Labor n (%)

4308 (60.45%)

6336 (69.69%)

< 0.0001

Induction of labor n (%)

1168 (16.39%)

1587 (17.45%)

0.07671

Epidural n (%)

2826 (39.66%)

4708 (51.78%)

< 0.0001

Spontaneous vaginal birth n (%)

4401 (61.78%)

6689 (73.57%)

< 0.0001

Operative vaginal birth n (%)

273 (3.83%)

581 (6.39%)

< 0.0001

Vacuum extraction n (%)

147 (2.06%)

509 (5.60%)

< 0.0001

Forceps delivery n (%)

126 (1.77%)

72 (0.79%)

< 0.0001

Total CD n (%)

2452 (34.41%)

1822 (20.04%)

< 0.0001

Planned CD n (%)

1650 (23.15%)

1169 (12.86%)

< 0.0001

History of CD n (%)

895 (12.56%)

1092 (12.01%)

0.29

Mild to moderate asphyxia^a n (%)

147 (2.04%)

102 (1.11%)

< 0.0001

Severe asphyxia^b n (%)

8 (0.11%)

19 (0.21%)

0.14

Perinatal mortality n (%)

18 (0.25%)

28 (0.31%)

0.5

Admissions to NICU n (%)

360 (5%)

417 (4.55%)

0.18