Review the detailed description of the study provided below….
Review the detailed description of the study provided below. Which of the following best describes the risk of bias in this study? Select the one correct one answer. A parallel-group randomized controlled trial evaluated the effect of a school-based, nurse-led healthy weight management afterschool program on children’s weight, a key predictor of adult cardiovascular health. Following baseline measurements, 132 child-parent dyads were randomized to intervention (A; 9-month healthy weight management program) or control (B; 9-month social-emotional learning program) conditions. A study statistician generated the randomization schedule using the sequence A, B, B, A, A for every five participants. Only the statistician had access to this schedule, and all study staff members and research participants remained blinded to the allocation sequence. Table 1 shows baseline demographic characteristics by group. Table 1. baseline characteristics of participants by treatment group Control (n=66) Intervention (n=66) Total (n=132) Child sex, male, n (%) 35 (52) 32 (48) 67 (51) Age, years, M (SD) 9.3 (0.9) 9.3 (0.9) 9.3 (0.9) Weight category, n (%) Non-obese 27 (41) 28 (42) 55 (42) Obese 21 (32) 18 (27) 39 (30) Severely obese 18 (27) 20 (30) 38 (28) M= mean, SD = standard deviation