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Table 1 Participant characteristics of club members vs. controls

From: Association of nutrition club membership with markers of health: a cross sectional study

N = 100 club members, N = 100 controls (unless otherwise specified)

Club Members

Controls

P-valuea

Site

 1

30 (30%)

30 (30%)

0.99b

 2

27 (27%)

27 (27%)

0.99b

 3

12 (12%)

12 (12%)

0.99b

 4

13 (13%)

13 (13%)

0.99b

 5

10 (10%)

10 (10%)

0.99b

 6

8 (8%)

8 (8%)

0.99b

Age (yrs)

41.1 ± 10.9

39.7 ± 12.9

0.12

Gender (% male)

36 (36%)

36 (36%)

0.99b

Race/Ethnicity

 White

27 (27%)

27 (27%)

0.99b

 Hispanic/Latino/Spanish

73 (73%)

73 (73%)

0.99b

Annual household income

 Less than $14,999

29 (29%)

34 (34%)

0.46

 $15,000–$29,999

21 (21%)

20 (20%)

0.86

 $30,000–$49,999

16 (16%)

20 (20%)

0.60

 $50,000–99,999

18 (18%)

18 (18%)

0.99

 $100,000–$149,999

10 (10%)

4 (4%)

0.15

 $150,000+

6 (6%)

4 (4%)

0.73

Current Smokers (%)

6 (6%)

13 (13%)

0.17

Supplement Use

26 (26%)

21 (21%)

0.58

% self-reporting diabetes

11 (11%)

12 (12%)

0.81

% using medication for diabetes

7 (7%)

10 (10%)

0.55

% self-reporting high cholesterol

27 (27%)

12 (12%)

0.008

% using medication for high cholesterol

12 (12%)

9 (9%)

0.61

% self-reporting hypertension

8 (8%)

15 (15%)

0.17

% using medication for hypertension

5 (5%)

13 (13%)

0.08

% self-reporting heart disease

3 (3%)

1 (1%)

0.62

% using medication for heart disease

3 (3%)

0 (0%)

n/a

Highest level of education completed

 Never attended school

3 (3%)

1 (1%)

0.62

 Elementary school

31 (31%)

22 (22%)

0.14

 High school

30 (30%)

41 (41%)

0.05

 Professional certificate or college 1–3 yrs

13 (13%)

19 (19%)

0.18

 Bachelor’s degree

17 (17%)

13 (13%)

0.45

 Graduate or professional degree

6 (6%)

4 (4%)

0.75

Health Behaviors

SF36 Health Survey Measures (norm-based)c

 General health

58.2 ± 7.8

52.7 ± 10.8

<0.001

 Bodily pain

54.7 ± 8.7

52.1 ± 10.6

0.04

 Mental health

53.5 ± 9.1

51.0 ± 11.1

0.09

 Physical functioning

55.0 ± 5.4

54.9 ± 4.6

0.78

 Role limitations due to emotional problems

52.5 ± 7.9

51.8 ± 8.6

0.52

 Role limitations due to physical problems

54.5 ± 6.6

53.8 ± 6.5

0.43

 Social functioning

52.7 ± 7.4

51.4 ± 9.4

0.25

 Vitality

57.3 ± 7.6

53.8 ± 9.4

0.006

 Mental health component score

52.9 ± 8.3

50.7 ± 10.7

0.11

 Physical health component score

56.2 ± 6.4

54.3 ± 6.8

0.03

 AHEI score, median ± IQR (range)d

67.7 ± 13.4 (42.8–83.6)

60.4 ± 11.9 (35.5–80.2)

<0.001

Physical Activity

 IPAQ walking MET minutes/week, median (range)e

594 (66–11,088)

792 (23.1–11,088)

0.49

 Total steps (per day)f

6310.7 ± 3540.2

5393.8 ± 4045.6

0.12

 IPAQ summary score, median (range)g

3180 (132–27,090)

4293 (99–32,725)

0.27

 MOS sleep summary score, median (range)h

52.2 (23.1–63.8)

50.2 (25.0–63.8)

0.03

 Depression: CESD total score, median (range)i

7.0 (0–42)

6.0 (0–48)

0.45

 % Depressedi

19 (20.0%)

25 (26.3%)

0.40

  1. N (%), mean ± SD, or median (range)
  2. IPAQ International Physical Activity Questionniare, MOS Medical Outcomes Study, CESD Center for Epidemiologic Studies Depression Scale, AHEI Alternative Healthy Eating Index
  3. aPaired t test for age, SF36 health survey measures, food intake behavior, and family/friend encouragement, discouragement, and participation questions; Wilcoxon signed rank test for CESD, IPAQ, MOS sleep summary scores, and AHEI score; McNemar’s test for others. Significant p-values are indicated by italicized numbers in bold
  4. bvariable was part of matching criteria for study
  5. chigher scores indicate better health/ better outcome (ie. better general health, less bodily pain, better mental health, etc.)
  6. dAHEI is an 11 component score measuring diet quality, based on current scientific knowledge, and scores can range from 0 (worst/least healthy) to 120 (best/most healthy); assessed by Block Food Frequency Questionniare (N = 94 pairs), restricting to participants reporting energy intake 500 ≤ kcal ≤6000
  7. eMET = ‘metabolic equivalent task’ which expresses the intensity of a physical activity; walking MET = 3.3 x walking minutes x walking days; thus, an individual walking 30 min per day for 7 days per week would be assigned walking MET = 3.3 × 30 × 7 = 693 MET minutes/week; N = 87 pairs
  8. f N = 88 pairs
  9. gsummary score is sum of MET minutes/week for walking, moderate, and vigorous activity; IPAQ assigns walking 3.3 METs, moderate activity 4.0 METs, and vigorous activity 8.0 METs; N = 97 pairs
  10. h N = 99 pairs; MOS sleep index score based on 6 components and is an overall measure of the extent/severity of sleep problems; higher score indicates fewer sleep-related problems
  11. i N = 95 pairs; score of less than 16 indicates no clinically significant depression, and 16 is sub-threshold for clinical depression
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BMC Public Health

ISSN: 1471-2458

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