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Table 1
Selected Characteristics of 1219 Look AHEAD participants
Characteristics

Socio-demographic Characteristics
Age (years)	59.5 ± 6.7
Sex
Male	501 (41.1)
Education (years)^†
16+	192 (16.2)
13 - 16	389 (32.7)
≤ 12	607 (51.1)
Race
Black	327 (26.8)
White	795 (65.2)
Other	97 (8.0)
Income ^‡
< $20,000	79 (7.5)
$20,000-$40,000	184 (17.6)
$40,000-$60,000	216 (20.7)
$60,000-$80,000	185 (17.7)
≥ $80,000	382 (36.5)
Body mass index [BMI, kg/m²]	36.1 ± 5.7
Overweight [20-29.9]	163 (13.4)
Obese [30-34.9]	780(64.0)
Extreme Obesity[≥ 35]	276 (22.6)

Neighborhood Census Tract Indicators
Percent Below Poverty [Range = 0, 0.67]	0.11 ± 0.10
Cubbin Deprivation Score [Range = -2.9, 2.8]	0.001 ± 0.78
Diez-Roux Deprivation Score [Range = -18.7, 12.0]	0.010 ± 5.0
Food Stores [Range = 0, 9]	1.3 ± 1.5
Convenience Stores [Range = 0, 4]	0.6 ± 0.8
Restaurants [Range = 0, 104]	6.8 ± 10.8
Other Food Stores [Range = 0, 9]	2.0 ± 2.8
Other Food Service [Range = 0, 9]	2.6 ± 3.2

Dietary Intake (daily)
Total Fat (%) ^ξ
≥ 35	465 (73.9)
< 35	164 (26.1)
Saturated Fat (%) ^ξ
≥ 10	519 (82.5)
< 10	110 (17.5)
Fruit & Vegetable (servings) ^ξ
< 9	584 (92.8)
≥ 9	45 (7.2)

Eating Patterns
Eat breakfast (days/week)^§
7 vs < 7	839 (69.1)
Eat breakfast at a fast food restaurant^€
≥1 vs. 0	237 (27.7)
Eat breakfast at non-fast food restaurant^ψ
≥1 vs 0	335(27.7)
Eat lunch (days/week)^¥
7 vs < 7	827 (68.1)
Each lunch at a fast food restaurant^χ
≥1 vs 0	440 (36.4)
Eat lunch at a non-fast food restaurant^χ
≥1 vs 0	618 (51.2)
Eat dinner (days/week)^¢
7 vs < 7	1081 (89.2)
Eat dinner at a fast food restaurant^χ
≥1 vs 0	285 (23.6)
Eat dinner at a non-fast food^τ
≥1 vs 0	876 (72.5)

Weight Loss
Attempting weight loss^§
Yes	1161 (95.6)
Participation in weight loss program ^¥
Yes	748 (61.6)

Weight Loss Control Practices (yes/no)
*Food*
Count fat grams^¥	194 (16.0)
Cut out between meal snacking ^τ	428 (35.4)
Eat less high carbohydrate foods^€	713 (58.9)
Reduce the number of calories eaten^ά	661 (54.5)
Record what you eat daily ^γ	442 (36.4)
Decrease fat intake ^τ	636 (52.6)
Eat meal replacements	193 (15.9)
Cut out sweets and junk food from diet	763 (63.0)
Increase fruit and vegetables	789 (65.3)
Fast or go without the food entirely^ά	74 (6.1)
Count calories^ά	193 (15.9)
Eat special low calorie diet foods	256 (21.2)
Drink fewer alcoholic beverages	222 (18.5)
Eat less meat^€	430 (35.5)
Weight control food outcome summary score [0-13]	4.92 ± 3.06
*Physical Activity*
Keep a graph of exercise^¥	87 (7.2)
Increase your exercise levels^ά	671 (55.3)
Use home exercise equipment^§	374 (30.8)
Record exercise daily^¥	149 (12.3)
Weight control physical activity outcome summary score [0-4]	1.05 ± 0.99
*Weight Control*
Keep graph of weight^§	82 (6.8)
Go to a weight loss group^§	173 (14.2)
Take diet pills^§	55 (4.5)
Other weight control activities	111 (13.1)
Smoke cigarettes^§	51 (4.2)
Weight control weight loss summary score [0-4]	0.38 ± 0.64

Resource Use (yes/no)
*Food*
Food preparation equipment purchased in the past year^§	621 (51.1)
*Physical Activity*
Positive feeling about exercise₫	765 (63.9)
Indoor exercise purchases in the past year ^γ	411 (33.8)
Outdoor exercise purchases in the past year ^γ	103 (8.5)
Gym membership purchase in the past year ^ή	265 (21.7)
Resource use physical activity outcomes summary score	1.27 ± 0.96
*Weight Control*
Class membership/services for weight loss purchases in the past year^§	398 (32.8)
Joined a weight loss program in the past year^ά	161 (13.3)
Resource use weight control outcomes summary score	0.46 ± 0.61

^†N = 1188, ^‡N = 1046, ^ξN = 629, ^§N = 1215, ^¥N = 1214, ^¢N = 1212, ^€N = 1210, ^ψN = 1211, ^χN = 1208, ^τN = 1209, ^ℓn = 1203, ^ΩN = 1199, ^ΔN = 1205, ^∏N = 1200, ^₫N = 1197, ^άN = 1213, ^ήN = 1219, ^γN = 1216 All results are presented as n(%) or mean ± SD Higher Cubbin and Diez-Roux score= lower SES
Gary-Webb et al. BMC Public Health 2010 10:312 doi:10.1186/1471-2458-10-312

Table 1