The Association between Shift Work and the Metabolic Syndrome in Female Workers

Table 3 Prevalence of each criterion for the metabolic syndrome of the subjects

Criterion	Daytime workers (n = 71)		Shift workers (n = 183)		p-value
	Number (%)		Number (%)
WC (≥85 cm)	4	(5.6)	13	(7.1)	0.674^*
BP (≥130/85 mmHg) or being treated	20	(28.2)	92	(50.3)	0.001^†
FBS (≥100 mg/dL) or being treated	3	(4.2)	45	(24.6)	<0.001^†
TG (≥150 mg/dL) or being treated	7	(9.9)	36	(19.7)	0.061^†
HDL (<50 mg/dL) or being treated	18	(25.4)	49	(26.8)	0.817^†
Metabolic syndrome^‡	2	(2.8)	28	(15.3)	0.006^†

WC, waist circumference; FBS, fasting blood sugar; TG, triglyceride; HDL, high density lipoprotein.
*calculated by Fisher’s exact test, † calculated by × ² test.
‡ Metabolic syndrome is any 3 of these 5 criteria: WC ≥ 85 cm, BP ≥ 130/85 mmHg, FBS ≥ 100 mg/dL, TG ≥ 150 mg/dL and HDL < 50 mg/dL or being medicated for the same conditions.

ISSN: 2052-4374