Table 1.
General characteristics of the study participants based on case and control groups as well as across tertiles of energy-adjusted red meat intake*; Iranian adults aged >45 years, January–December 2008
| Cases (n 195) | Controls (n 195) | ||||||
|---|---|---|---|---|---|---|---|
| Mean | se | Mean | se | P ‡ | |||
| Age (years) | 67·9 | 1·0 | 61·5 | 0·8 | <0·001 | ||
| Weight (kg) | 69·5 | 0·9 | 72·4 | 1·1 | 0·05 | ||
| BMI (kg/m2) | 25·2 | 0·3 | 28·4 | 1·0 | 0·01 | ||
| Physical activity (MET-min/d) | 4766 | 55·5 | 3951 | 49·1 | 0·43 | ||
| Male (%) | 60 | – | 47 | – | 0·01 | ||
| Current smoker (%) | 14 | – | 6 | – | 0·01 | ||
| Obesity† (%) | 29 | – | 11 | – | <0·001 | ||
| Hypertension (%) | 66 | – | 27 | – | <0·001 | ||
| Hyperlipidaemia (%) | 22 | – | 19 | – | 0·49 | ||
| Tertile of energy-adjusted red meat intake | |||||||
| T1 (lowest) | T2 | T3 (highest) | |||||
| Mean | se | Mean | se | Mean | se | P ‡ | |
| Age (years) | 62·3 | 1·0 | 64·7 | 1·0 | 62·4 | 1·1 | 0·01 |
| Weight (kg) | 66·4 | 1·1 | 73·3 | 1·1 | 73·6 | 1·3 | <0·001 |
| BMI (kg/m2) | 26 | 0·5 | 27·4 | 0·4 | 27·5 | 1·5 | 0·54 |
| Physical activity (MET-min/d) | 4167 | 1173 | 3006 | 566 | 5884 | 848 | 0·08 |
| Male (%) | 38 | – | 52 | – | 70 | – | <0·001 |
| Current smoker (%) | 5 | – | 8·5 | – | 16 | – | 0·01 |
| Obesity† (%) | 19 | – | 27 | – | 15·5 | – | 0·06 |
MET, metabolic equivalent of task.
*
Data are means and their standard errors unless indicated otherwise. P<0·05 was considered as statistically significant.
†
BMI≥30·0 kg/m2.
‡
Obtained by the use of ANOVA or the χ 2 test, where appropriate.