Best Friends Foundation-Results DC Chart

2004-05 Washington D.C. All Spring Post-tests YRBS Risk Indicators

Had Smoked:
Percent Answering ‘Yes’.

	6^thGrade	7^thGrade	8^thGrade
2004-05 Best Friends	5.4%	4.0%	7.9%
2003-04 YRBS Girls	28.1%	44.5%	47.6%
Statistically significant difference?	Yes	Yes	Yes

2004-05 Best Men	1.5%	16.9%	7.3%
2003-04 YRBS Boys	47.1%	42.5%	54.3%
Statistically significant difference?	Yes	Yes	Yes

Had Used Drugs:
Percent Answering ‘Yes’.

	6^thGrade	7^thGrade	8^thGrade
2004-05 Best Friends	1.3%	5.0%	4.5%
2003-04 YRBS Girls	6.6%	12.8%	21.8%
Statistically significant difference?	Yes	Yes	Yes

2004-05 Best Men	1.4%	23.5%	4.3%
2003-04 YRBS Boys	9.8%	17.5%	29.1%
Statistically significant difference?	Yes	No	Yes

Had Consumed Alcohol:
Percent Answering ‘Yes’.

	6^thGrade	7^thGrade	8^thGrade
2004-05 Best Friends	10.7%	20.9%	35.2%
2003-04 YRBS Girls	26.1%	45.2%	55.4%
Statistically significant difference?	Yes	Yes	Yes

2004-05 Best Men	16.2%	29.5%	19.6%
2003-04 YRBS Boys	26.4%	44.9%	50.4%
Statistically significant difference?	No*	Yes	Yes

*Actual numbers are too small to detect significance.

Had Engaged in Sexual Intercourse:
Percent Answering ‘Yes’.

	6^thGrade	7^thGrade	8^thGrade
2004-05 Best Friends	1.3%	6.1%	10.3%
2003-04 YRBS Girls	5.4%	20.5%	30.1%
Statistically significant difference?	Yes	Yes	Yes

2004-05 Best Men	16.4%	29.5%	31.9%
2003-04 YRBS Boys	37.5%	49.5%	55.4%
Statistically significant difference?	Yes	Yes	Yes

Frequency counts are as follows: for BF, 151 in the 6^th, 184 in the 7^th, and 89 in the 8^th grades; for BM, 38 in the 6^th grade, 26 in the 7^th, and 27 in the 8^th; for the YRBS girls, 103 in the 6^th, , 418 in the 7^th, and 418 in the 8^th; for YRBS boys, there were 105 in the 6^th, 387 in the 7^th, and 302 in the 8^th. Percentages are for display purposes only. The actual number answering each question vary , for both the BF/BM programs and the YRBS. The difference between the program group and the YRBS for each grade was deemed statistically significant when the calculated likelihood of the difference occurring by chance was less than 5 percent. Calculations were performed on frequencies, not percentages.

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