Metabonomics Study of Essential Hypertension and Its Chinese Medicine Subtypes by Using Gas Chromatography-Mass Spectrometry and Nuclear Magnetic Resonance Spectroscopy

Table 1

Basic demographic characteristics of participants in NMR analysis.

Characteristics	Controls% (𝑛)	YDYHS group% (𝑛)	YYDS group% (𝑛)	𝑃 value
Sex				1.000
Female	45.45 (5)	42.86 (6)	40 (4)
Male	54.56 (6)	57.14 (8)	60 (6)
Age				1.000
30–40	9.09 (1)	14.29 (2)	10 (1)
40–50	36.36 (4)	35.71 (5)	40 (4)
50–60	54.55 (6)	50 (7)	50 (5)