Table 1

Attendance and weight loss by dyad status in the NDPP

Participants (N = 2,946)
Enrolled in dyad (n = 90)Enrolled alone (n = 2,856)P value
Any attendance66 (73.3)1,272 (44.5)<0.001
Percentage of sessions attended*43.0 ± 3.836.3 ± 0.90.074
Days of attendance*145.0 ± 15.1110.0 ± 3.60.025
Program completion*22 (33.3)250 (19.7)0.022
Percent weight loss*−1.4 ± 0.5−1.8 ± 0.10.495
Achieved ≥5% weight loss*13 (19.7)191 (15.3)0.462
 Men6 (31.6)43 (16.0)0.031
 Women7 (14.9)148 (15.5)0.200
  • Data are presented as mean ± SE based on modified population marginal means for continuous variables and frequency (percent) for categorical variables. Boldface type indicates statistical significance in adjusted models (P < 0.05). Models include sex, age, race/ethnicity, and attendance to presessions prior to enrollment. Weight loss models are further adjusted for attendance.

  • * Data are presented for participants attending ≥1 session.

  • Program completion is defined as attending ≥3 sessions in months 1–6 and duration ≥9 months.

  • Achieving ≥5% weight loss was significantly modified by sex (P = 0.016).