Table 4. Residents’ knowledge of Institute of Medicine (IOM) 2009 gestational weight gain (GWG) recommendations, by patients’ pre-pregnancy weight status.

Only respondents who selected one answer are included in the table. Dark gray cells represent answers corresponding to recommended ranges of GWG according to 2009 IOM GWG guidelines; light gray cells indicate answers consistent with IOM 2009 recommendations but not inclusive of entire recommended range; white cells represent answers inconsistent with IOM 2009 recommendations.

	Underweight (N=444)	Normal weight (N=450)	Overweight (N=445)	Obese (N=448)
Gain 50 lbs	0.9%	0%	0.2%	0.2%
Gain 28–40 lbs	35.6%	0.9%	0.2%	0.7%
Gain 35 lbs	9%	0.2%	0.2%	0%
Gain 25–35 lbs	31.1%	40.4%	1.1%	0%
Gain 30 lbs	9.2%	4.2%	1.6%	0.2%
Gain 15–25 lbs	8.8%	40.4%	31.9%	4.9%
Gain 15 lbs	1.4%	3.1%	7%	4.9%
Gain 11–20 lbs	2.3%	7.1%	20.5%	17.2%
Gain 5–15 lbs	0.7%	2.4%	24.7%	22.1%
Gain 0–10 lbs	0.2%	0.7%	11%	33%
Lose up to 10 lbs	0.9%	0.4%	1.6%	16.7%