Table 1. Demographic information for the sample of 295 controls split into both genders and field strengths.

Field strength/Gender (N; Age ± SD; Range)	Male (143; 45.7±15.6; 20–79)	Female (152; 44.8±14.3; 20–80)
1.5 T (151; 46.9±14.7; 21–80)	74; 48.9±13.6; 27–77	77; 45.1±15.7; 21–80
3 T (144; 43.2±14.9; 20–79)	69; 41.1±16.6; 20–79	75; 45.2±12.8; 20–71