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. 2019 Feb 19;10:125. doi: 10.3389/fneur.2019.00125

Table 1.

Characteristics of participants in the Ausimmune Study included in the analysis for non-processed red meat (n = 689; 250 cases, 439 controls) and processed red meat (n = 683; 248 cases, 435 controls).

Non-processed red meat Processed red meat
Case Control Case Control
SEX, % (n)1
 Male 25.2 (63) 24.4 (107) 25.4 (63) 24.1 (105)
 Female 74.8 (187) 75.6 (332) 74.6 (185) 75.9 (330)
Age, year, mean (SD)a 38.7 (9.7) 40.0 (9.6) 38.8 (9.7) 40.0 (9.6)
STUDY REGION, % (n)a
 Brisbane (27°S) 34.0 (85) 37.1 (163) 33.9 (84) 37.2 (162)
 Newcastle (33°S) 12.4 (31) 14.6 (64) 11.7 (29) 14.0 (61)
 Geelong (37°S) 23.6 (59) 24.4 (107) 24.2 (60) 24.6 (107)
 Tasmania (43°S) 30.0 (75) 23.9 (105) 30.2 (75) 24.1 (105)
Race, % (n) 94.1 (241) 94.1 (413) 96.4 (239) 94.0 (409)
 Caucasian 3.6 (9) 5.9 (26) 3.6 (9) 6.0 (26)
OTHER
History of infectious mononucleosis, % (n)
 No 65.2 (163) 79.3 (348) 64.9 (161) 79.3 (345)
 Yes 28.0 (70) 16.2 (71) 28.2 (70) 16.1 (70)
 Don't know 6.8 (17) 4.6 (20) 6.9 (17) 4.6 (20)
Serum 25(OH)D concentrations (nmol/L), mean (SD) 75.8 (29.7) 81.9 (30.3) 75.8 (29.8) 81.5 (30.6)
Total years of smoking, median (IQR) 5.7 (18.7) 2.0 (14.8) 5.4 (18.9) 1.7 (14.7)
BODY MASS INDEX, MEDIAN (IQR)
Education, % (n)
 Year 10 or less 24.8 (62) 33.3 (146) 25.0 (62) 33.3 (145)
 Year 12 and tertiary and further education 50.0 (125) 41.7 (183) 49.2 (122) 41.2 (179)
 University 25.2 (63) 25.1 (110) 25.8 (64) 25.5 (111)
Non-processed red meat intake (g/day), median (IQR) 46.5 (62.1) 58.7 (57.8) N/A N/A
Non-processed red meat density (g/1,000 kcal/day), median (IQR) 28.9 (28.2) 35.4 (27.4) N/A N/A
Processed red meat intake (g/day), median (IQR) N/A N/A 18.9 (22.6) 18.3 (22.1)
Processed red meat density (g/1,000 kcal/day), median (IQR) N/A N/A 11.1 (11.2) 11.0 (10.5)
DIETARY MISREPORTING, % (n)
 Under-reporter 42.8 (107) 40.6 (178) 42.7 (106) 40.7 (177)
 Plausible reporter 57.2 (143) 59.5 (261) 57.3 (142) 59.3 (258)

SD, standard deviation; 25(OH)D, 25-hydroxyvitamin D; IQR, interquartile range.

a

Case and control participants were matched on sex, age (within 2 years) and study region.