Rosamund - I would agree with the others, those results are far too low, plus I suspect he is not eating properly, no wonder he is difficult and depressed ! I must assume that he still lives on his own and is used to getting his own way. If you cannot persuade him to ask for some help (difficult, I know !) then maybe your husband/partner could suggest he gets a visit from your GP (it sometimes comes over better if it's from another fella). If he is not eating properly, he will become malnutritioned and dehydrated and what that does to one's body chemistry is awful,,, no wonder the poor guy is suffering from depression.