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Started by machiavelli on Mar 19, 2022 10:39:19 AM
Blood Pressure Stats

I've been nerdily recording my blood pressure in Libreoffice Calc since early December and even more nerdily have started trying to use the spreadsheet stats functions.

Wierdly, comparison of modes and means indicates that systolic and pulse readings have a strong positive skew while diastolic readings are normally distributed. Is this normal or is my circulatory system wierd?

RosyLovelady - 30 Apr 2022 09:39:04 (#1 of 19)


machiavelli - 30 Apr 2022 08:45:10 (#2 of 19)

Heh! Looks like there's no talkboard market for blood pressure nerdiness.

RosyLovelady - 30 Apr 2022 09:48:05 (#3 of 19)

I've only got a cheap BP machine from Boots which tells me, by the power of its little memory, that my BP is consistently low enough to assure immortality. I know nothing of fancy-dan apps and spreadsheets though, sorry.

Oldbathrobe1 - 30 Apr 2022 11:00:32 (#4 of 19)

Typically, a normal blood pressure reading is considered to be 120/80, but an individual’s normal range may vary. The systolic blood pressure is commonly seen to rise as we get older, with diastolic showing a slight decline.

RosyLovelady - 30 Apr 2022 12:04:20 (#5 of 19)

I've come to the conclusion that I probably don't care enough to satisfy modern sensibilities about this sort of thing.

machiavelli - 30 Apr 2022 11:07:32 (#6 of 19)

This month I'm 121/83 morning average and 116/77 evening average. Stage 1 hypertension on rising, normal before sleeping.

Anyhoo, I was hoping I could use the properties of the normal distribution to do nerdy analysis but the skew has given me pause for thought. Though sometimes, as the figures for the month build, the skew can disappear or reverse.

ArriveAlive - 30 Apr 2022 11:24:52 (#7 of 19)

I also have a nerdy spreadsheet recording blood pressure and resting heart rate (where available).

The data start ~30 years ago, when I had a health check as part of the mortgage life assurance policy.

There’s then a 13 year gap until a point when my work occupational health section started participating in the annual BHF Know Your Numbers campaign. More recently I’ve been logging my annual blood test appointment readings (I’m on anticoagulant medication).

Most recent results were 111/65 with a RHR of ~50bpm.

A few years ago I was told I had the blood pressure of a 21 year old. “That’s unfortunate for the 21 year old who’s wandering around with my 50-odd year old blood pressure,” I replied.

Verdigris - 30 Apr 2022 11:31:38 (#8 of 19)

I've had a BP machine for some years. I usd to take my BP regularly and write the results on the back of an envelope. Back then my results were, very consistently, a boringly normal, 120/80ish. When Covid came along I got an oxymeter and treated myself to a new thermometer, as the display on the old one was very feint. Since then, the first thing I do in the morning is check my sats and temperature, which have also been, fortunately mostly boring normal, so BP fell by the wayside. More recent BP measurements have been, not too surprisingly, a bit above my old norms but not enough to concern the anaesthetist for a recent general anaesthetic.

I've now decided to try the Michael Mosely Just One Thing of daily beetroot, to boost my energy, with the side benefit of lowering blood pressure. In the interests of science, I suppose I should resume my daily BP monitoring, to see if it works.

Antimatter - 30 Apr 2022 14:14:14 (#9 of 19)

The thing with BP is, if it is high, find out why. I had high BP for years and mostly ignored it as I felt OK, it wasn't until I lost consciousness in the sea and nearly drowned that I got a referral and found out I had a congenital defect. Easily sorted with the right meds though. Could have been nasty.

RosyLovelady - 30 Apr 2022 18:58:14 (#10 of 19)

I remember reading that in Germany (I think) the medics take low blood pressure as seriously as high. I've forgotten the reason of course. Presumably if it's very low you're already dead.

Arjuna - 30 Apr 2022 19:23:30 (#11 of 19)

If it is too low just start worrying about then it will go higher

barkis - 30 Apr 2022 20:09:29 (#12 of 19)

Could low blood pressure be a sign of internal bleeding?

DesEsseintes - 30 Apr 2022 20:26:50 (#13 of 19)

I suppose. Low salt and sugar is maybe more likely though. I dunno.

Antimatter - 30 Apr 2022 20:43:08 (#14 of 19)

The one thing guaranteed to send your blood pressure up, is being told you have high blood pressure. It's a bit like depression, if your doctor tells you you are depressed, you can immediately feel very sad. Doesn't automatically mean you are depressed though, and I do not mean any way to disparage any doctors lurking or posting on this site. Just my experience.

barkis - 30 Apr 2022 20:46:13 (#15 of 19)

I get much lower readings at home than in the surgery.

Verdigris - 30 Apr 2022 19:48:04 (#16 of 19)

White coat syndrome.

Antimatter - 30 Apr 2022 20:50:26 (#17 of 19)

Yeah, but dont fool yourself, if it's high, it's high, just push to find the reason for it.

machiavelli - 30 Apr 2022 22:47:39 (#18 of 19)

Mine is higher in the morning. I want to test the data to see if the two populations are significantly different. I'll probably find the answer just before my veins pop

RosyLovelady - 01 May 2022 06:47:29 (#19 of 19)

I've I've got internal bleeding, it's been going on for years. Still, it would be a wonderfully dramatic explanation for why I've been feeling tired.

Cheers up.

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