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Table 1 Sample characteristics for male and female AMI patients stratified by frequency of sleep disturbances

From: Association of sleep disturbances within 4 weeks prior to incident acute myocardial infarction and long-term survival in male and female patients: an observational study from the MONICA/KORA Myocardial Infarction Registry

  Men (n = 2511) Women (n = 828)
SLEEP DISTURBANCES p-valuea SLEEP DISTURBANCES p-valuea
never n = 1699 sometimes n = 571 nightly n = 241   never n = 427 sometimes n = 251 nightly n = 150  
Socio-demographic Data
 Age, years [median (IQR)] 60 (15) 60 (15) 60 (14) 0.7213 65 (13) 65 (13) 65 (12) 0.8775
 Low Education, <  9 years 1186 (69.8) 407 (71.3) 170 (70.5) 0.7958 351 (82.2) 202 (80.8) 113 (75.3) 0.1894
 Married 1378 (81.1) 435 (76.2) 190 (78.8) 0.0375 258 (60.42) 147 (58.57) 91 (60.67) 0.8732
 Currently employed 788 (46.4) 243 (42.6) 99 (41.1) 0.1236 98 (22.95) 50 (19.92) 26 (17.33) 0.3057
Lifestyle factors
 BMI, kg/m2 [median (IQR)] 27.1 (4.8) 27.4 (4.7) 27.7 (5.3) 0.0370 26.8 (7.4) 27.5 (7.1) 27.7 (7.0) 0.5334
 Adiposity, BMI > 30 kg/m2 376 (22.1) 141 (24.7) 69 (28.6) 0.0566 134 (31.4) 86 (34.3) 50 (33.3) 0.7258
 Ever Smoker 1280 (75.3) 402 (70.4) 187 (77.6) 0.0322 209 (49.0) 112 (44.6) 76 (50.7) 0.4216
Comorbidities
 Angina 190 (11.2) 104 (18.2) 52 (21.6) <  0.0001 69 (16.16) 30 (11.95) 31 (20.67) 0.0631
 Hypertension 1219 (71.8) 438 (76.7) 193 (80.1) 0.0040 350 (82.0) 206 (82.1) 129 (86.0) 0.5034
 Dyslipidemia 1220 (71.8) 394 (69.0) 172 (71.4) 0.4393 310 (72.6) 187 (74.5) 119 (79.3) 0.2665
 Diabetes 443 (26.1) 143 (25.0) 59 (24.5) 0.8022 137 (32.1) 82 (32.7) 53 (35.3) 0.7647
 Stroke 75 (4.4) 29 (5.1) 15 (6.2) 0.4232 28 (6.6) 15 (6.0) 14 (9.3) 0.4070
Clinical aspects
Type of Infarction
STEMI 710 (41.8) 204 (35.7) 86 (35.7) 0.0756 180 (42.2) 87 (34.7) 64 (42.7) 0.2622
NSTEMI 872 (51.3) 323 (56.6) 137 (56.9)   229 (53.6) 149 (59.4) 81 (54.0)  
Bundle Branch Block/non-classifiable 117 (6.9) 44 (7.7) 18 (7.5)   18 (4.2) 15 (6.0) 5 (3.3)  
Revascularization therapy 1521 (89.5) 490 (85.8) 221 (91.7) 0.0175 338 (79.2) 195 (77.7) 111 (74.0) 0.4254
4 EBM at discharge 1221 (71.9) 418 (73.2) 183 (75.9) 0.3852 285 (66.7) 180 (71.7) 111 (74.0) 0.1699
Mortality
 Deceased during follow-up 206 (12.1) 87 (15.2) 25 (10.4) 0.0818 71 (16.6) 37 (14.7) 23 (15.3) 0.7964
  1. Data is presented as absolute number (%) unless otherwise indicated.
  2. AMI acute myocardial infarction, BMI Body Mass Index, EBM evidence based medication, IQR interquartile range, NSTEMI Non-ST-segment elevation myocardial infarction, STEMI ST-segment elevation myocardial infarction
  3. ap-values are obtained from χ2-tests for categorical data or from Kruksal-Wallis test for continuous data (age and BMI)