Screening high-risk clusters for developing birth defects in mothers in Shanxi Province, China: application of latent class cluster analysis

Table 5 Comparisons of the prevalence of birth defects in the three risk clusters

Clusters	N	Prevalence (%)	χ ²	Multiple comparisons^a
High-risk cluster	2259	318 (14.08)	2742.94	1 > 2 > 3
Moderate-risk cluster	8219	70 (0.85)
Low-risk cluster	26238	136 (0.52)
Total	36716	524 (1.43)

ISSN: 1471-2393