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  Indian J Med Microbiol
 

Figure 10: Correlation of occipitofrontal circumference with postnatal age by birth weight categories. Predictive equations by birth weight categories are as follows: extremely low birth weight: y = 1.55x + 25.77; R2 = 0.98; very low birth weight: y = 1.38x + 29.50; R2 = 0.93; and low birth weight: y = 1.45x + 30.81; R2 = 0.95

Figure 10: Correlation of occipitofrontal circumference with postnatal age by birth weight categories. Predictive equations by birth weight categories are as follows: extremely low birth weight: y = 1.55x + 25.77; <i>R</i><sup>2</sup> = 0.98; very low birth weight: y = 1.38x + 29.50; <i>R</i><sup>2</sup> = 0.93; and low birth weight: y = 1.45x + 30.81; <i>R</i><sup>2</sup> = 0.95