Table 1.
Patient characteristics and baseline measurements in normal, NTG, and POAG groups
| Normal | NTG | POAG | p Value | |
| Total | 34 | 22 | 20 | |
| Sex distribution | ||||
| Male (n=44) | 23 | 12 | 9 | NS |
| Female (n=32) | 11 | 10 | 11 | |
| Numbers in each age group | ||||
| <60 years (n=32) | 22 | 5 | 5 | 0.002 |
| >60 years (n=44) | 12 | 17 | 15 | |
| Mean age (SD), years | 54.1 (11.8) | 65.4 (11.2) | 66.8 (12.5) | 0.0002 |
| Mean resting pneumotonometer IOP (SD) (mm Hg) (n=76) | 16.4 (4.3) | 15.6 (4.0) | 23.7 (4.9) | <0.00001 |
| Mean resting Goldmann IOP (SD) (mm Hg) (n=76) | 18.1 (2.8) | 15.8 (2.8) | 26.5 (3.1) | <0.00001 |
| Mean resting POBF (SD), (μl/min) (n=75) | 1086.9 (403.4) | 1020.0 (356.0) | 802.1 (509.4) | NS |
| Mean resting heart rate (SD), (bpm) (n=76) | 72.1 (11.1) | 66.0 (8.4) | 73.4 (12.5) | NS |
| Mean arterial pressure at rest (SD), (mm Hg) (n=74) | 105.8 (10.7) | 105.0 (13.3) | 106.7 (11.7) | NS |
| Number of patients with specific risk factors (n=76) | ||||
| None | 22 | 7 | 10 | 0.002 |
| Vasospastic alone | 5 | 9 | 1 | |
| Atherosclerotic alone | 1 | 3 | 8 | |
| Both | 6 | 3 | 1 | |
| Numbers taking cardiovascular medications | ||||
| No | 28 | 18 | 13 | NS |
| Yes | 6 | 4 | 7 | |
| Refractive error (numbers of subjects) | ||||
| myopia >−2 D | 4 | 2 | 1 | NS |
| −2D to +2D | 26 | 15 | 16 | |
| hypermetropia >+2D | 3 | 4 | 1 | |
NS = non-significant at 5% level.
Note: refer to text for explanation of “adjusted” p values.