Body mass index-percentile, which indicate obesity is: March 2011, March 2013 (g)

**Core Concept**
Body mass index (BMI) is a widely used measurement to assess body weight status. For children and adolescents, BMI percentile is a more accurate indicator of weight status, as it takes into account the child's age and sex. Obesity is defined as a BMI at or above the 95th percentile for age and sex.

**Why the Correct Answer is Right**
BMI percentile for age and sex is used to assess weight status in children and adolescents. The 95th percentile is the cut-off for obesity, indicating that the child's weight is above the normal range for their age and sex. The Centers for Disease Control and Prevention (CDC) provide BMI growth charts that include percentiles for children and adolescents.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify the correct percentile value for obesity.
**Option B:** This option is incorrect because it does not account for age and sex in the assessment of weight status.
**Option C:** This option is incorrect because it does not provide a clear definition of obesity in children and adolescents.

**Clinical Pearl / High-Yield Fact**
For accurate assessment of weight status in children and adolescents, use BMI percentile for age and sex, and refer to the CDC growth charts.

**Correct Answer:** . 95th