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. 2016 Nov 1;6(11):e012914. doi: 10.1136/bmjopen-2016-012914

Table 1.

Characteristics of 7052 participants in the Hordaland Health Study (HUSK) without prevalent or 12-month incident ischaemic heart disease (hospitalisation or death with I20–I25)

Non-cases health anxiety*
N=6342 (%)
Cases health anxiety†
N=710 (%)
p Value for difference
Age‡ 43.1 (1.55) 43.2 (1.61) 0.005§
 Missing 0 (0) 0 (0)
Gender (male) 3305 (52.1) 361 (50.8) 0.521¶
 Missing 0 (0) 0 (0)
Cohabiting 4754 (75.0) 470 (66.2) <0.001¶
 Missing 0 (0) 0 (0)
Education
 Less than high school 1035 (16.3) 168 (23.7) <0.001¶
 High school 2939 (46.3) 323 (45.5)
 College or university 2318 (36.5) 213 (30.0)
 Missing 50 (0.8) 6 (0.8)
Usual alcohol consumption per 14 days (units)
 0 1587 (25.0) 197 (27.7) 0.008¶
 1–5 1744 (27.5) 159 (22.4)
 ≥6 1765 (27.8) 191 (26.9)
 Missing 1246 (19.6) 163 (23.9)
Activity (hours per week)
 0 1704 (26.9) 231 (32.5) 0.002¶
 <1 1704 (26.9) 204 (28.7)
 1–2 1789 (28.2) 174 (24.5)
 ≥3 919 (14.5) 77 (10.8)
 Missing 226 (3.6) 24 (3.4)
Diabetes (yes) 61 (1.0) 15 (2.1) 0.006¶
 Missing 34 (0.5) 7 (1.0)
First-degree relative with AMI before 60 years of age (yes) 957 (15.1) 128 (18.0) 0.004¶
 Missing or unknown 196 (3.1) 34 (4.8)
BMI
 ≤19.9 254 (4.0) 32 (4.5) 0.011¶
 20.0–24.9 2909 (45.7) 285 (40.1)
 25.0–29.9 2476 (39.0) 288 (40.6)
 ≥30.0 704 (11.1) 103 (14.5)
 Missing 7 (0.1) 2 (0.3)
Total cholesterol quintiles (mg/dL)
 1st (<183.7) 1265 (20.0) 133 (18.8) 0.552¶
 2nd (≥183.7, <202.3) 1262 (19.9) 141 (19.9)
 3rd (≥202.3, <221.2) 1262 (19.9) 141 (19.9)
 4th (≥221.2, <244.8) 1282 (20.2) 134 (18.9)
 5th (≥244.8) 1261 (19.9) 159 (22.5)
 Missing 11 (0.2) 2 (0.3)
HDL quintiles (mg/dL)
 1st (<37.0) 1173 (18.5) 172 (24.3) <0.001¶
 2nd (≥37.0, <43.0) 1235 (19.5) 153 (21.6)
 3rd (≥43.0, <49.5) 1302 (20.6) 136 (19.2)
 4th (≥49.5, <58.1) 1279 (20.2) 126 (17.8)
 5th (≥58.1) 1342 (21.2) 121 (17.1)
 Missing 11 (0.2) 2 (0.3)
Systolic BP quintiles (mm Hg) 128.5 (0.17) 128.3 (0.53
 1st (<116.7) 1247 (19.9) 155 (22.2) 0.536¶
 2nd (≥116.7, <123.7) 1247 (19.9) 134 (19.2)
 3rd (≥123.7, <130.3) 1189 (19.0) 119 (17.0)
 4th (≥130.3, <139.0) 1129 (20.6) 143 (20.5)
 5th (≥139.0) 1288 (20.6) 147 (21.1)
 Missing 16 (0.3) 2 (0.3)
Smoking
 Current 2488 (39.2) 341 (48.0) <0.001¶
 Former 1783 (28.1) 187 (26.3)
 Never 2064 (32.5) 181 (25.5)
 Missing 7 (0.1) 1 (0.1)

*Score under 90th centile (<31 points) of Whiteley Index.

†Score equal to or above 90th centile (≥31 points) of Whiteley Index.

‡Mean (st.dev).

§Independent samples t-test.

¶Pearson χ2.