. 2020 Nov 30;64(1):34–41. doi: 10.5468/ogs.20157

Table 5.

Small for gestational age in association with tea drinking expressed by crude and adjusted relative risk (RR)

Tea consumption	Crude RR	Adjusted RR
Tea consumption	Crude RR	First model^a)	Second model^b)	Third model^c)
Absence of tea consumption	Ref.	Ref.	Ref.	Ref.
ET group	1.53 (0.62–2.81)	1.56 (0.69–2.32)	1.52 (0.71–2.50)	1.46 (0.78–2.39)
UT group	0.98 (0.76–1.12)	1.18 (0.52–1.86)	1.09 (0.90–1.32)	1.03 (0.89–1.15)

Values are presented as RR (95% confidence interval).

ET, excessive tea; UT, usual tea.

^a)

First model was adjusted for maternal age, parity, pre-pregnancy body mass index, gestational weight gain, and gestational age in weeks at first antenatal visit, and delivery;

^b)

Second model was adjusted for education level; either literate or illiterate, employment, and smoking habit;

^c)

Third model was adjusted for all parameters included in upper models.