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. 2014 Jun;104(6):e106–e112. doi: 10.2105/AJPH.2013.301822

TABLE 1—

Equivalence of Baseline Characteristics, Adjusted for Clusters and for Multiple Imputed Sample: HIV-Preventive Intervention for American Indian Middle School Youths, Northern Plains Region, 2006–2007

P
Characteristics No. COL Control Adjusted for Cluster Multiply Imputed Sample and Adjusted for Clustera
Female, % 635 48.79 45.17 .21
Age, y, mean 635 12.98 13.08 .18
HIV/STD knowledge, % 493 6.94 7.07 .767 .709
Ever had sex, % 499 12.80 17.67 .218 .244
Age at first sex, y,b mean 69 12.70 12.50 .6 .942
Had sex in last 12 mo, % 499 7.72 10.29 .429 .364
Condom at last sex,b % 73 80.65 76.19 .338 .348

Source. Circle of Life (COL), 2006–2009.

a

Total imputed sample sizes are n = 314 (COL) and n = 321 (control). Percentages and means are based on actual responses.

b

Number responding to question out of 76 who reported having had sex.