Table 2. Training subset: Distribution of Congo red dying patterns in affected and unaffected pregnancies.

Pattern (see Fig 1)		Preeclampsia (n = 66)	Unaffected (n = 704)
(a)	Small non-diffused red dot	2 (0.3%)	225 (32%)
(b)	Mildly diffused dot, scarlet pseudopodium	9 (14%)	392 (56%)
(c)	Diffused dot, scarlet pseudopodium, pink penumbra	5 (7.6%)	65 (9.2%)
(d)	Small dot, irregular partly diffused pale red penumbra	1 (1.5%)	1 (0.1%)
(e)	Red and scarlet dot, partly diffused pale red penumbra	10 (15%)	12 (1.7%)
(f)	Large uniform pale diffused dot	39 (59%)	9 (1.3%)