TABLE 3.

Distribution of microreader nontreponemal values by RPR titer

RPR titer	No. of samples	Microreader nontreponemal value(s)
		Mean	Median	IQR
Negative	141	4.4	2.8	1.8–4.2
1:1	71	6.3	3.4	1.9–7.2
1:2	59	13.5	12	5.5–19
1:4	46	27.2	25.5	13–36
1:8	37	43.0	44	23–53
1:16	20	56.1	60.5	30–78
1:32	3	143	162	95–172
1:64	4	140	115.5	94.5–187
1:256	2	167	167	103–231
Total	383	18.7	6.1	2.5–23