Table 4. Weight Loss Maintenance Strategies and Perceptions (Estimated Mean±SE) By Level of Physical Activity at Enrollment*.
| Level of Physical Activity at Enrollment (kcals/week) | p-value | |||||
|---|---|---|---|---|---|---|
| <1000 (n = 732) | 1000-2249 (n=761) | 2250-3499 (n=655) | ≥3500 (n=769) | Overall | Linear Trend | |
| Strategies Used For Weight Loss Maintenance Over the Past Year | ||||||
| Kept few high-fat foods in house (%) | 67.66 +1.58 | 76.87 +1.54 | 80.74 +1.66 | 80.17 +1.54 | <.0001 | <.0001 |
| Kept healthy foods in house (%) | 90.47 +0.83 | 94.73 +0.81 | 96.28 +0.87 | 97.15 +0.81 | <.0001 | <.0001 |
| Decreased restaurant meals (%) | 46.24 +1.86 | 48.77 +1.82 | 52.82 +1.96 | 50.70 +1.82 | 0.0915 | 0.0362 |
| Contact with normal weight friends (%) | 21.03 +1.59 | 25.52 +1.55 | 21.99 +1.67 | 27.11 +1.55 | 0.0189 | 0.0386 |
| Contact with friends who exercise (%) | 26.04 +1.80 | 40.81 +1.75 | 44.57 +1.89 | 55.28 +1.75 | <.0001 | <.0001 |
| Keep picture of self (%) | 30.79 +1.74 | 32.69 +1.70 | 30.97 +1.83 | 38.19 +1.69 | 0.0067 | 0.0084 |
| Weigh self regularly (%) | 86.78 +1.16 | 90.41 +1.13 | 90.16 +1.22 | 89.00 +1.13 | 0.1052 | 0.2168 |
| Keep written food record (%) | 41.97 +1.83 | 57.64 +1.79 | 60.16 +1.93 | 59.22 +1.79 | <.0001 | <.0001 |
| Purchase books/magazines related to nutrition or exercise (%) | 62.94 +1.63 | 71.69 +1.59 | 76.11 +1.71 | 80.28 +1.59 | <.0001 | <.0001 |
| Participate in weight loss or maintenance program(s) (%) | 36.44 +1.78 | 41.38 +1.73 | 38.80 +1.87 | 33.78 +1.73 | 0.0142 | 0.1838 |
| Currently use liquid formula (%) | 7.81±0.96 | 6.89±0.95 | 11.84±1.03 | 10.52±0.93 | 0.0009 | 0.0023 |
| Consume breakfast (days/week) | 6.00 +0.06 | 6.35 +0.06 | 6.41 +0.06 | 6.40 +0.05 | <.0001 | <.0001 |
| Fast food meals per week | 0.94 +0.05 | 0.73 +0.05 | 0.63 +0.05 | 0.60 +0.05 | <.0001 | <.0001 |
| Perceptions Related to Weight Loss Maintenance Over the Past Year | ||||||
| Difficulty Maintaining Weight (1-7) | 3.71±0.04 | 3.82±0.04 | 3.93±0.05 | 3.87±0.04 | 0.0048 | 0.0021 |
| Importance of Exercise (1-8) | 5.80±0.05 | 7.13±0.05 | 7.46±0.06 | 7.66±0.05 | <.0001 | <.0001 |
| Importance of Diet (1-8) | 7.03±0.05 | 7.23±0.04 | 7.31±0.05 | 7.33±0.04 | <.0001 | <.0001 |
*
Data reported as mean ± standard error, adjusted to the sample age and gender (age = 46.8; proportion male = 24%) estimated using a general linear model.
†
Linear trend p-values calculated using polynomial contrasts
ŧ
Median sample size for variables shown. Maximum of 19% missing for any one variable.