Collaborative Multi-level Obesity Intervention Engaging Underserved Communities Trial

Trained personnel will measure weight at all visits using a digital weight scale. For weight, measurement will be performed twice, with a third measurement if the first 2 measurements deviate more than 0.1 kg. An average of the two closest measurements will be used for analyses.

Trained personnel will measure waist circumference at all study visits using a non-elastic tape measure placed on the skin in a horizontal plane around the abdomen at the level of the iliac crest. The measurement will be performed twice, with a third measurement if the first 2 measurements deviate more than 0.5 cm; average of the two closest measurements will be used for analyses.

Systolic blood pressure (SBP) and diastolic blood pressure (DBP) will be measured at every study visit using an oscillometric Omron Professional Intellisense Blood Pressure Monitor HEM-907XL and following the American Heart Association (AHA) protocol.

Diet will be self-reported at every study visit using a diet screener that has been developed by the study investigators and used in past studies. The screener will assess frequency of consumption of selected food and drinks over the past month - including fruits and vegetables, high-fat foods, and alcoholic beverages.

Physical activity will be self-reported at every study visit using the 7-item international physical activity questionnaire - short form (IPAQ-SF). This tool records the time spent at 4 different activity levels (vigorous, moderate, walking, sitting) according to 7-day recall. Scores are computed by calculating total minutes/week or total MET-minutes/week spent in the following activity levels: vigorous, moderate, walking, sitting. A total physical activity score is computed by summing the values for vigorous, moderate, and walking domains. The minimum score is 0 (no activity), with higher scores indicating more physical activity. The categorical physical activity level (low, moderate, and high) will be calculated using cut points recommended by the authors. Continuous activity score may be used as a more sensitive measure of participant physical activity change.

Quality of life will be self-reported at every study visit using the 10-item Patient Reported Outcomes Measurement Information System (PROMIS) Global Health measure. Raw scores for Global Physical Health and Global Mental health will be computed, ranging from 4 to 20. Per PROMIS scoring guidelines, raw scores will be transformed to a T-score metric, with higher scores representing better health on each domain.

Change in weight from the baseline visit to the 12 month visit using a standard protocol (see above).

Change in waist circumference from the baseline visit to the 12 month visit using a standard protocol (see above).

Change in SBP and DBP from baseline visit to 12 month visit using a standard protocol (see above).

Diet will be self-reported at every study visit using a diet screener that has been developed by the study investigators and used in past studies. The screener will assess frequency of consumption of selected food and drinks over the past month - including fruits and vegetables, high-fat foods, and alcoholic beverages.

Physical activity will be self-reported at every study visit using the 7-item international physical activity questionnaire - short form (IPAQ-SF). This tool records the time spent at 4 different activity levels (vigorous, moderate, walking, sitting) according to 7-day recall. Scores are computed by calculating total minutes/week or total MET-minutes/week spent in the following activity levels: vigorous, moderate, walking, sitting. A total physical activity score is computed by summing the values for vigorous, moderate, and walking domains. The minimum score is 0 (no activity), with higher scores indicating more physical activity. The categorical physical activity level (low, moderate, and high) will be calculated using cut points recommended by the authors. Continuous activity score may be used as a more sensitive measure of participant physical activity change.

Quality of life will be self-reported at every study visit using the 10-item Patient Reported Outcomes Measurement Information System (PROMIS) Global Health measure. Raw scores for Global Physical Health and Global Mental health will be computed, ranging from 4 to 20. Per PROMIS scoring guidelines, raw scores will be transformed to a T-score metric, with higher scores representing better health on each domain.

Composite measure of fidelity comprised of self-reported frequency of weight measurement, receipt of health coaching, and use of community resources that support healthy lifestyles.