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Table 1 Monthly average of total delivery, NVD, CS, and rate of CS in population before and after HTP

From: The impact of Health Transformation Plan on natural vaginal delivery and cesarean section frequency in Iran: an interrupted time series analysis

Variables Mean (standard deviation) t-statistic (p value)
Mean Mean before HTP Mean after HTP
NVD 1930.81 (231.99) 1816.30 (226.19) 2018.38 (198.06) − 3.68 (0.000)
CS 1938.56 (268.54) 2130.38 (229.02) 1791.88 (195.04) 6.17 (0.000)
Total delivery 3869.38 (375.38) 3946.69 (436.56) 3810.26 (315.03) 1.40 (0.164)
Cs/total 50.06 (4.40) 54.03 (1.77) 47.02 (3.23) 9.95 (0.000)