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. 2023 Jun 26;13:10304. doi: 10.1038/s41598-023-37436-y

Table 5.

Epidemiology of CL/P-related perinatal deaths.

Characteristics Number of CL/P (n) Number of perinatal deaths (n) Proportion of CL/P-related perinatal deaths (%) χ2 P
Residence 14.34 0.00
 Urban 285 50 17.54
 Rural 400 121 30.25
Gender 4.35 0.11
 Male 368 98 26.63
 Female 316 72 22.78
 Unknown 1 1 100.00
Maternal age (years old) 18.90 0.00
 < 20 19 10 52.63
 20–24 92 32 34.78
 25–29 276 73 26.45
 30–34 189 36 19.05
 ≥ 35 109 20 18.35
Maternal education 4.30 0.12
 Secondary school or below 209 62 29.67
 Senior school 275 67 24.36
 University or above 201 42 20.90
Per-capita annual income (¥) 12.49 0.00
 < 4000 101 39 38.61
 4000–7999 194 48 24.74
 ≥ 8000 390 84 21.54
Parity 11.49 0.01
 0 7 4 57.14
 1 302 89 29.47
 2 299 65 21.74
 ≥ 3 77 13 16.88
Diagnostic methods 283.22 0.00
 B-Ultrasound 254 155 61.02
 Clinical 419 13 3.10
 Other 12 3 25.00
Time of diagnosis 290.15 0.00
 Antepartum (< 32 weeks) 173 111 64.16
 Antepartum (32–36 weeks) 73 42 57.53
 Antepartum (≥ 37 weeks) 20 5 25.00
 Postpartum (Within 7 days) 419 13 3.10

CL cleft lip only, CP cleft palate only, CLP cleft lip with palate, CL/P cleft lip and/or palate.