Table 4

Multivariately analyzed correlation between FSSG scores and 14 background factors among 539 H₂RA users.

Factors

Regression coefficient

P-value

Standardized regression coefficient (β)

Inadequate sleep

3.280

< 0.0001 *

0.2477

Habit of midnight snack

2.830

0.0001 *

0.1595

Use of anticoagulants

-2.203

0.0493 *

-0.1056

Use of antihypertensive drugs

-1.372

0.0429 *

-0.0945

Gender (female)

1.100

0.0887

0.0816

Use of NSAIDs

-1.441

0.0805

-0.0743

Age

-0.050

0.1020

-0.0742

Habit of smoking

0.666

0.3184

0.0425

Dinner just before bedtime

0.505

0.4290

0.0359

Frequent lack of breakfast

0.483

0.5296

0.0268

BMI

0.031

0.6862

0.0173

History of cardiovascular disease

0.390

0.7445

0.0161

Habit of alcohol drinking

0.167

0.7826

0.0123

History of cerebrovascular disease

-0.030

0.9821

-0.0010

BMI, body mass index; H₂RAs, histamine H₂-receptor antagonists; NSAIDs, non-steroidal anti-inflammatory drugs. Multiple regression analysis was performed focusing on the 14 background factors, comprised of two continuous variables (age and BMI) and other 12 categorical variables. The level of significance in each factor was set at P-value < 0.05 (*). All the 14 background factors were sorted in order of absolute values of standardized regression coefficients (β).

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