International Scholarly Research Notices / 2011 / Article / Tab 1

Research Article

High Salt Intake and Risk of Chronic Bronchitis: The Copenhagen Male Study—A 10-Year Followup

Table 1

Baseline characteristics (1976) of men with high self-assessed salt intake (high salt preference) and others.

High salt intake#Others

Subjects   𝑛 7012169
Age yrs53.0 ± 5.152.9 ± 5.1
Smoking
Current smoking68.860.6##
Smoking 1970/7174.665.5##
Alcohol use
Alcohol, beverages/week
 0–551.260.6
 6–2039.833.8##
 21+9.15.6
Occupational dust and fumes exposure27.121.7##
Other characteristics
Low social class (IV/V)52.650.2
Lower airway symptoms
Do you cough when you wake up in the morning?
% yes13.811.9
In wintertime do you cough many times during the day or at night?
% yes10.28.1+
Do you cough many times a day or during the night for a period of more than three months per year?
% yes6.75.4
In wintertime do you cough up phlegm when you wake up in the morning?
% yes18.415.7+
Do you cough up phlegm during the night or during the day for a period of more than three months per year?
% yes6.15.6

Data are presented as mean ± SD or percentages. #: high salt preference; +: 𝑃 < 0 . 1 0 ; ##: 𝑃 < 0 . 0 1 ; 𝑃 value of Chi-squared test or unpaired t-test (age).

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