Relationship between Body Weight and Blood Pressure

in a group of selected youth

Project OneSATURDAY SCIENCE ACADEMY

Group Members

• Camille Coleman

• Martina Igberaese

• Lindsay Mays

• Telicha Purnell

• Jenisha Turner

• Devereau Williams

• Steven Williams

Hypothesis

• We believe that heavier individuals would have high Systolic BP.

Objective

• The main purpose of these exercises is to learn the process of scientific investigations by generating quick data.

• This study investigated if heavier subjects have high blood pressure.

Methods

• The BP of MAMP summer bridge participants were collected three times with 10 min interval.

Methods (Continued)

• Body weights of the participants were also recorded.

Methods (Continued)

• Collected data were organized and descriptive statistics was performed on the data (Histogram, line graph etc.,).

• A linear regression of body weight over systolic BP was performed.

Descriptive Statistics ofWeights

Weight (lb)

Mean 152.76Standard Error 7.56Median 150Mode 160Standard Deviation 31.16Sample Variance 970.69Kurtosis -0.65Skewness 0.40Range 101Minimum 109Maximum 210Sum 2597Count 17

Weight Frequency Distribution on the MAMP Participants

0

1

2

3

4

5

6

7

Weight in lbs

Fre

qu

ency

Weight's Frequency

0

1

2

3

4

5

6

7

109 134.25 159.5 184.75 More

Weight(lb)Nu

mber

of St

uden

ts

Descriptive Statistics ofWeights (Continued)

Weight's Frequency

1096% 134.25

18%

159.534%

184.7524%

More18%

Box plot in Weights (lbs)Median = 150

135

210

109

166

0

50

100

150

200

250

Relationship between Weight and BP(Systolic)

Plot of Fitted Line

0

50

100

150

200

0 100 200 300

Body Weight (lbs)

Sys

tolic

BP

Y

Predicted Y

Regression StatisticsMultiple R 0.625165R Square 0.390831Adjusted R Square0.35022Standard Error 10.38136Observations 17

Coefficients P-valueIntercept 87.40496462 6.66E-06X Variable 10.258419562 0.007284

Since the number of observations was low, line fit does not show well.

Conclusion

• Generally, heavier individulas had a slightly higher Systolic BP.

• Since the number of subjects are relatively low, no conclusive evidence were found between BP and body weight.