Table 5. Gender-specific PNF within-group effects for drinks per week.
| Sample size | GS PNF | Control | ||||
|---|---|---|---|---|---|---|
| Study | Subgroup | FU Wks | PNF | Control | D within | D within |
| Curtis (2005) | 6 | 34 | 47 | 1.000 (-1.202, 3.202) | 0.100 (-2.087, 2.287) | |
| LaBrie, Lewis, Atkins, Neighbors, Zheng, Kenney, Napper, Walter, Kilmer, Hummer, Grossbard, Ghaidarov, Desai, Lee, and Larimer (2013) | 4 | 184 | 184 | 0.800 (-0.403, 2.003) | 0.300 (-0.962, 1.562) | |
| Lewis (2005) | Females | 4 | 32 | 27 | 3.830 (1.412, 6.248) | -0.180 (-2.447, 2.087) |
| Lewis (2005) | Males | 4 | 33 | 30 | 5.390 (2.400, 8.380) | -1.450 (-4.825, 1.925) |
| Lewis, Patrick, Litt, Atkins, Kim, Blayney, Norris, George, Larimer (2014) | 12 | 119 | 121 | 5.010 (3.393, 6.627) | 2.470 (0.929, 4.011) | |
| Summary effect (k = 5) | 3.089 (0.992, 5.186) | 0.557 (-0.663, 1.778) | ||||
Note. Positive D within indicates a reduction in drinks per week from baseline to follow-up. Bold font indicates statistically significant weighted mean difference. D within = raw mean difference; GS = gender-specific; PNF = Personalized Normative Feedback; k = number of interventions; FU Wks = number of weeks from baseline to first follow-up; CI = confidence interval.