Table 2.

Mean, standard deviation, and range of backgrounds in pregnant women (n=221).

Variables	Mean	Standard deviation	Maximum	Minimum
Age	27.9	5.5	42	18
Week of pregnancy	21.3	8.6	39	8
BMI	24	3.9	37.5	17.4
General oral health knowledge	4.1	1.7	8	0
Knowledge about pregnancy oral health	1.6	0.9	4	0

BMI: Body mass index before pregnancy