Table 3.

Stratum-Specific Likelihood Ratios for Cutoff Scores on the English and Spanish Versions of the Newest Vital Sign, Stratified by TOFHLA Score

Number Correct on NVS-E	TOFHLA <75*	TOFHLA ≥ 75*	SSLR^†	SSLR^‡Grouped
NVS-E = Newest Vital Sign-English; TOFHLA = Test of Functional Health Literacy in Adults SSLR = stratum-specific likelihood ratio.
* 75 is the TOFHLA cut-off score below which individuals are considered to have marginal or inadequate literacy. Individuals with scores >75 are considered to have adequate literacy.
† Stratified by TOFHLA scores <75 (marginal or inadequate literacy) vs 75 (adequate literacy).
‡ SSLRs for detecting low literacy at each score on the NVS in English (1-A) and Spanish (1-B). Because of the similarity in SSLRs in adjacent groups, we suggest grouping scores into 3 categories: 0–1, 2–3, 4–6.
English
0	9	8	6.1	} 5.4
1	19	20	5.1	} 5.4
2	5	25	1.1	} 1.2
3	6	24	1.4	} 1.2
4	0	49	0	} 0
5	0	37	0
6	0	48	0
Total	39	211
Spanish
0	38	32	2.2	} 1.8
1	30	37	1.5	} 1.8
2	17	34	0.9	} 0.6
3	3	28	0.2	} 0.6
4	0	15	0	} 0
5	0	10	0
6	0	6	0
Total	88	162