Table 5.

The sensitivity and specificity of the self-reported questionnaire for PD identified by self-report and routine records (N = 11 539)

	TP	FN	Sensitivity	TN	FP	Specificity
Rest Tremor	26	27	49.1	11016	470	95.9
Difficulty Walking	19	34	35.9	11006	480	95.8
Difficulty Chair	21	32	39.6	10770	716	93.8
Walking Slower	45	8	84.9	7619	3867	66.3
Micrographia	39	14	73.6	10457	1029	91.0
Olfactory dysfunction	18	35	34.0	10442	1044	90.9
Any of 6 symptoms	51	2	96.0	6373	5113	55.5
Any of symptoms except Walking slower	48	5	90.6	8684	2802	75.6
≥2 symptoms	46	7	86.8	9705	1781	84.5
≥3 symptoms	38	15	71.7	10930	556	95.2
≥4 symptoms	22	31	41.5	11363	123	98.9
≥5 symptoms	11	42	20.8	11455	31	99.7

TP = True Positive; FN = False Negative; TN = True Negative; FP = False Positive