Table 1

Correlation between FSSG scores and 25 background factors of the 19,864 participants (univariate analyses).

Factors

FSSG scores of the applicable subjects to the factor

FSSG scores of the inapplicable subjects to the factor

P-value


Gender (female)

5.1 ± 5.4 (8,371)

4.6 ± 5.1 (11,493)

< 0.0001 *

History of gastrectomy

5.9 ± 6.0 (210)

4.8 ± 5.2 (19,654)

0.0019 *

Use of PPIs

9.0 ± 7.3 (371)

4.7 ± 5.1 (19,493)

< 0.0001 *

Use of H2RAs

8.2 ± 6.6 (539)

4.7 ± 5.1 (19,325)

< 0.0001 *

Use of other digestive drugs

8.2 ± 6.5 (985)

4.6 ± 5.1 (18,879)

< 0.0001 *

Use of NSAIDs

6.9 ± 5.8 (1,076)

4.7 ± 5.2 (18,788)

< 0.0001 *

Use of steroids

6.1 ± 6.1 (214)

4.8 ± 5.2 (19,650)

0.0002 *

Use of anticoagulants

4.7 ± 4.9 (572)

4.8 ± 5.2 (19,292)

0.6056

Use of antihypertensive drugs

4.6 ± 5.1 (2,581)

4.8 ± 5.2 (17,283)

0.0967

Use of antihyperglycemic agents

3.8 ± 4.3 (561)

4.8 ± 5.2 (19,303)

< 0.0001 *

Use of antihyperlipidemic agents

4.7 ± 5.2 (1,728)

4.8 ± 5.2 (18,136)

0.3572

History of cerebrovascular disease

4.8 ± 5.1 (289)

4.8 ± 5.2 (19,575)

0.9675

History of cardiovascular disease

5.6 ± 5.7 (554)

4.8 ± 5.2 (19,310)

0.0002 *

History of renal failure

4.8 ± 5.2 (86)

4.8 ± 5.2 (19,778)

0.8984

Increased body weight in adulthood

5.2 ± 5.5 (7,449)

4.5 ± 5.0 (12,415)

< 0.0001 *

Lack of habitual physical exercise

5.0 ± 5.3 (14,988)

4.1 ± 4.8 (4,876)

< 0.0001 *

Habit of midnight snack

5.9 ± 6.0 (3,180)

4.6 ± 5.0 (16,684)

< 0.0001 *

Inadequate sleep

6.0 ± 5.8 (7,988)

4.0 ± 4.6 (11,876)

< 0.0001 *

Frequent lack of breakfast

5.9 ± 6.0 (2,709)

4.6 ± 5.1 (17,155)

< 0.0001 *

Dinner just before bedtime

5.6 ± 5.8 (6,035)

4.4 ± 4.9 (13,829)

< 0.0001 *

Habit of quick eating

5.0 ± 5.3 (7,652)

4.6 ± 5.1 (12,212)

< 0.0001 *

Habit of smoking

5.0 ± 5.3 (3,981)

4.7 ± 5.2 (15,883)

0.0013 *

Habit of alcohol drinking

4.8 ± 5.2 (6,553)

4.8 ± 5.2 (13,311)

0.9618


Age

r = -0.06

< 0.0001 *

BMI

r = -0.01

0.2399


BMI, body mass index; H2RAs, histamine H2-receptor antagonists; NSAIDs, non-steroidal anti-inflammatory drugs; PPIs, proton pump inhibitors; r, regression coefficient. Except for age and BMI, the Student's t-test was used to evaluate the correlation between each background factor and the FSSG score (mean ± standard deviation is shown). The correlation of FSSG score with age or BMI was assessed using Pearson's correlation coefficient. The levels of significance in these univariate analyses were set at P-value < 0.05 (*).

Yamamichi et al. BMC Medicine 2012 10:45   doi:10.1186/1741-7015-10-45

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