Research Article

The Differences of Population Birth Defects in Epidemiology Analysis between the Rural and Urban Areas of Hunan Province in China, 2014–2018

Table 1

The number of PIs, BDs, and BD prevalence rates grouped by sex in Liuyang county (rural) and Shifeng district (urban), Hunan Province, China, from 2014 to 2018.
(a)

RuralFemale-Liuyang countyMale-Liuyang countyTotal-Liuyang county
YearPIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)PIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)PIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)

20149126237259.7 (227.68-294.95)10,124353348.68 (313.25-387.02)19,250590306.49 (282.26-332.25)
20159235189204.66 (176.52-236.00)10,169252247.81 (218.16-280.37)19,404441227.27 (206.55-249.51)
20169928113113.82 (93.80-136.84)10,996230209.17 (183.00-238.02)20,924343163.93 (147.04-182.23)
20179474136143.55 (120.44-169.80)10,735278258.97 (229.42-291.27)20,209414204.86 (185.60-225.58)
2018780396123.03 (99.65-150.24)8717240275.32 (241.59-312.45)16,520336203.39 (182.22-226.34)
Total45,566771169.21 (157.47-181.58)50,7411353266.65 (252.63-281.24)96,3072124220.54 (211.26-230.13)

(b)

UrbanFemale-Shifeng districtMale-Shifeng districtTotal-Shifeng district
YearPIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)PIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)PIs ()BDs ()Prevalence rates (per 10,000 PIs) (95% CI)

2014166931185.74 (126.20-263.64)180751282.24 (210.14-371.09)347682235.90 (187.62-292.82)
2015156832204.08 (139.59-288.10)166538228.23 (161.51-313.26)323370216.52 (168.79-273.56)
2016163625152.81 (98.89-225.58)173736207.25 (145.16-286.93)337361180.85 (138.33-232.31)
2017167024143.71 (92.08-213.83)179819105.67 (63.62-165.02)346843123.99 (89.73-167.01)
2018147320135.78 (82.94-209.70)148423154.99 (98.25-232.56)295743145.42 (105.24-195.88)
Total8016132164.67 (137.78-195.28)8491167196.68 (167.98-228.87)16,507299181.14 (161.18-202.87)

aPIs: perinatal infants; BDs: birth defects; CI: confidence intervals. Population birth defect prevalence rates expressed per 10,000 PIs.