Weight Management Calculations

Age:
Height:		in cm
Weight:		lbs Kg
Gender:	Male Female
Activity Level:	Sedentary Lightly Active (1-3d/wk) Moderately Active (3-5d/wk) Very Active (6-7d/wk)
	Refresh

Calculations

Daily Caloric Requirements:

• Males = 66.5 + 13.75(wt) + 5.003(Ht) - 6.755(age)
• Females = 655.1 + 9.563(Wt) + 1.850(Ht) - 4.676(age)

Body Mass Index: Kg/m²

Body Fat Percentage (BMI estimation formula): (1.20*BMI)-(0.23*Age)-(10.8*gender)-5.4
Males = 1; Females = 0

Ideal Body Weight = 22*(Ht)²

Lean Body Weight (James Formula):

• Males: LBW = (1.10*Wt)-128(Wt/Ht)²
• Females: LBW = (1.07*Wt)-148(Wt/Ht)²

Patient Health Questionaire

Over the last 2 weeks, how often have you been bothered by any of the following problems?

1. Little interest or pleasure in doing things	Not at all Several days More than half the days Nearly every day
2. Feeling down, depressed, or hopeless	Not at all Several days More than half the days Nearly every day
3. Trouble falling or staying asleep, or sleeping too much	Not at all Several days More than half the days Nearly every day
4. Feeling tired or having little energy	Not at all Several days More than half the days Nearly every day
5. Poor appetite or overeating	Not at all Several days More than half the days Nearly every day
6. Feeling bad about yourself or that you are a failure, or have let yourself or your family down	Not at all Several days More than half the days Nearly every day
7. Trouble concentrating on things, such as reading the newspaper or watching television	Not at all Several days More than half the days Nearly every day
8. Moving or speaking so slowly that other people could have noticed. Or the opposite, being so figety or restless that you have been moving around a lot more than usual	Not at all Several days More than half the days Nearly every day
9. Thoughts that you would be better off dead, or of hurting yourself	Not at all Several days More than half the days Nearly every day

Reference: Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001 Sep;16(9):606-13. PubMed PMID: 11556941; PubMed Central PMCID: PMC1495268.

Generalized Anxiety Disorder

Over the last 2 weeks, how often have you been bothered by any of the following problems?

1. Feeling nervous, anxious, or on edge	Not at all Several days More than half the days Nearly every day
2. Not being able to stop or control worrying	Not at all Several days More than half the days Nearly every day
3. Worrying too much about different things	Not at all Several days More than half the days Nearly every day
4. Trouble relaxing	Not at all Several days More than half the days Nearly every day
5. Being so restless that it's hard to sit still	Not at all Several days More than half the days Nearly every day
6. Becoming easily annoyed or irritable	Not at all Several days More than half the days Nearly every day
7. Feeling afraid as if something awful might happen	Not at all Several days More than half the days Nearly every day

Reference: Spitzer RL, Kroenke K, Williams JBW, Lowe B. A brief measure for assessing generalized anxiety disorder. Arch Intern Med. 2006;166:1092-1097

Morphine Milligram Equivalent (MME) Calculator

Codeine	-- 15 30 60	per day
Fentanyl Transdermal Patch	-- 12.5 25 50 75 100	per patch (3 days)
Hydrocodone	-- 2.5 5 7.5 10	per day
Hydromorphone	-- 2 4 8 12 16 32	per day
Methadone	-- 5 10 40	per day
Morphine	-- 10 15 20 30 40 45 50 60 70 75 80 90 100 120 130 150 200	per day
Oxycodone	-- 5 7.5 10 15 20 30 40 60 80	per day
Oxymorphone	-- 5 7.5 10 15 20 30 40	per day
Tramadol	-- 50 100 150 200 300	per day

References:

Korff MV, Saunders K, Thomas Ray G, et al. De facto long-term opioid therapy for noncancer pain. Clin J Pain. 2008 Jul-Aug;24(6):521-7.

Dunn KM, Saunders KW, Rutter CM, et al. Opioid prescriptions for chronic pain and overdose: a cohort study. Ann Intern Med. 2010 Jan 19;152(2):85-92.

Benzo Equivalence Calculator

Medication	mg per day
Alprazolam (Xanax) Chlordiazepoxide (Librium) Clonazepam (Klonopin) Diazepam (Valium) Lorazepam (Ativan)

References:

https://www.benzo.org.uk/bzequiv.htm

Adult ADHD

What best describes how you have felt and conducted yourself over the past 6 months?

1. How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?	Never Rarely Sometimes Often Very Often
2. How often do you have difficulty getting things in order when you have to do a task that requires organization?	Never Rarely Sometimes Often Very Often
3. How often do you have problems remembering appointments or obligations?	Never Rarely Sometimes Often Very Often
4. When you have a task that requires a lot of thought, how often do you avoid or delay getting started?	Never Rarely Sometimes Often Very Often
5. How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?	Never Rarely Sometimes Often Very Often
6. How often do you feel overly active and compelled to do things, like you were driven by a motor?	Never Rarely Sometimes Often Very Often
7. How often do you make careless mistakes when you have to work on a boring or difficult project?	Never Rarely Sometimes Often Very Often
8. How often do you have difficulty keeping your attention when you are doing boring or repetitive work?	Never Rarely Sometimes Often Very Often
9. How often do you have difficulty concentrating on what people say to you, even when they are speaking to you directly?	Never Rarely Sometimes Often Very Often
10. How often do you misplace or have difficulty finding things at home or at work?	Never Rarely Sometimes Often Very Often
11. How often are you distracted by activity or noise around you?	Never Rarely Sometimes Often Very Often
12. How often do you leave your seat in meetings or other situations in which you are expected to remain seated?	Never Rarely Sometimes Often Very Often
13. How often do you feel restless or fidgety?	Never Rarely Sometimes Often Very Often
14. How often do you have difficulty unwinding and relaxing when you have time to yourself?	Never Rarely Sometimes Often Very Often
15. How often do you find yourself talking too much when you are in social situations?	Never Rarely Sometimes Often Very Often
16. When you’re in a conversation, how often do you find yourself finishing the sentences of the people you are talking to, before they can finish them themselves?	Never Rarely Sometimes Often Very Often
17. How often do you have difficulty waiting your turn in situations when turn taking is required?	Never Rarely Sometimes Often Very Often
18. How often do you interrupt others when they are busy?	Never Rarely Sometimes Often Very Often

Reference: Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist

Pick Statistics Calculator

• ARR / RRR / NNT / OR / RR:

Events in Control Group:
Total Control Group:
Events in Experimental Group:
Total Experimental Group:

• PPV/NPV:

Test Sensitivity:
Test Specificity:
Estimated Prevalence or Pre-test Probability:

Definitions:

Sensitivity: The proportion of positives that are correctly identified

Specificity: The proportion of negatives that are correctly identified

Prevalence: Number of cases present in a particular population at a given time (Not the number of new cases that develop during a specified time period, which is Incidence)