Table 1.

Demographic, clinical, and nutritional characteristics of ALS patients

FactorMean (SD)Range
* Type of onset: bulbar 28, spinal 22.
† At time of PEG.
‡ See text for details.
§ Normal range, 0.55–0.80.
¶ Normal range, 96.0–112.0.
PEG = percutaneous endoscopic gastrostomy; FVC% = forced vital capacity percent of predicted; BMI = body mass index.
Age at onset, y*59.6 (11.5)32–86
Age at PEG, y61.7 (11.3)34–87
Mean time between onset of ALS and PEG, y2.1 (1.5)1.3–3.4
FVC%68.9 (19.1)27–105
BMI21.3 (4.5)12.5–31
Norris score56.1 (17.5)35–83
Weight loss, %16.6 (11.5)−45.3–+16.9
Serum albumin, mmol/L§0.65 (0.07)0.43–0.83
Serum chloride, mmol/L105.5 (3.1)101.0–110.0