Showing posts with label AIDS. Show all posts
Showing posts with label AIDS. Show all posts

Monday, June 24, 2013

Cash for Good Behavior: Behavioral Economics for Disease Prevention


It's no surprise that as individuals, we are much more likely to do something  if there is some sort of proximate reward. We might even settle for a distal reward as long as the distance to our reward is somewhere shining on the horizon. 

An adage implies that a sign of maturity is delayed gratification. The idea that one is mature when he/she can delay getting a reward for whatever action is immediately being performed. If being comfortable with distal rewards is maturity, then what is it when we don't weigh every action by a reward? Probably altruism or... confusion... Cynicism here is unintentional. Altruism exists, but  we cannot deny that individuals make decisions based on how much benefit will be gained or how much pain can be avoided. Our decisions about life, love, work, and health are generally the ladder.  I am laying down no judgement here about the decision-making process. It would be silly if a species made decisions based on what hurt more or what was harder. I get it - we are talking about instincts here. Longevity. So how can we use this instinct to guide us towards making better choices?

Where does our action/reward reflex lead us when it comes to making decisions about maintaining our health? Take the case of flossing. Evidently the benefit of flossing every day isn't shiny enough to propel us towards adhering to oral  health recommendations for flossing....would I be more likely to do it if I got points or a free cup of tea or a dollar...yeah - probably. Yup. Definitely. I would floss more if I got something more out of the experience than a pat on the back once a year from my dentist and the vague knowledge that I maintained the health of my teeth.

Health maintenance doesn't really fit into the reward system of decision-making.  What about a prevention decision that has bigger consequences, like the decision to use a condom during sexual intercourse with a stranger? The "reward" is counter intuitive since many individuals complain that condoms make sex less pleasurable. The fact is that they make sex more safe. So here we have a risk/reward conflict. Let's complicate this conflict further. The consequences of not using condoms can lead to sexually transmitted infections (that range from uncomfortable to deadly) and unintended/unwanted pregnancy. You would think that individuals would be inclined to protect themselves...but immediate and satisfying rewards (proximate) tend to outweigh distal mediocre maintenance "rewards".  Sigh, we remain at an impasse  Unless we can change the proximate risk/reward conflict and supplement protective behavior with a proximate reward like...money. 

Cash transfers as behavior change interventions have emerged in the intersection  of education and health. Interventions have been designed attempting to keep youth enrolled in school with the intention of ultimately reducing risk behaviors like frequency of unprotected sex.  In a conditional cash transfer you must comply with a pre-specified condition (like staying enrolled in school/attending school 80% of the time) in order to be rewarded. If you don't, then no reward. An unconditional cash transfer is when you are given the reward with no specific agreement about what condition is being improved upon.

Surprisingly,  whether you say you are rewarding youth for something specific (conditional) or not (unconditional)- they are more likely to have a reduction in health risk behaviors. Girls are a bit better at this than boys. One study showed that youth enrolled in school who were in the conditional or unconditional cash transfer were 64% less likely to have contracted HIV and 76% less likely to have contracted herpes at the end of the 18 month study than those who were not receiving any sort of incentive (Baird, et. al, 2012). Hmmmm. Food for thought. Give youth a little cash for "good behavior" whether you stipulate what it is or not, they are probably more likely to protect themselves.  Noted.

There is a growing body of evidence around the effects of cash transfer programs, behavioral economics programs, economic mentorship programs, and we all know about the micro-finance programs. Many of these programs focus on education as a mediating and protective factor for health.  It is important to note that while the newer programs like cash transfers and economic mentorship are innovative, they are hard to sustain due to the fact that they are all about giving away money and not about investing for future revenue generating possibilities. One could argue that it is an investment in the health of the workforce, educated population, etc., but from a policy perspective our agendas tend to not be so mature. The policy agenda wants nay needs immediate gratification for the money spent (in order to justify expenditures) and distal rewards or delayed gratification are not a huge part of the process. A healthy educated workforce is often a reward too far off on the horizon. We can and will continue to work on this. 


-Jasmine Buttolph, MPH

Wednesday, November 7, 2012

VMMC as an HIV Prevention Intervention: Non-surgical Options

Prevention alert: HIV incidence can be reduced by 60%! Headlines raced around the globe with these statistics - heavy with promise for a new era in HIV prevention interventions. Not many statistics have the honor of being retained by so many, but most who heard that circumcision can reduce the risk of contracting the human immunodeficiency virus (HIV), the number, 60%, stuck in hopeful minds worldwide.

Perosnal views about circumcision aside for those for or adamantly against changing the body, one cannot argue with the protective benefit of male circumcision against HIV. 


Voluntary medical male circumcision (VMMC) is not a new prevention intervention. Many randomized clinical trials have shown that removal of the foreskin reduces the risk of contracting HIV. What is new is the techniques for circumcision in resource limited areas. One must first understand surgical circumcision to understand the non-surgical innovations.

VMMC vs. Traditional Circumcision
Tribal circumcisions evoke a visceral reaction from men and women. A traditional male circumcision is a right of passage that is meant to test one's stoicism when faced with excruciating pain. The practice is not meant to be painless and the circumstances may not be hygienic.

Medical male circumcision is a procedure conducted in a clinical setting with a trained healthcare provider using (hopefully) sterilized equipment and local anesthetic. It is a procedure that involves scalpels and stitches. The pain is still a concern and a right of passage for the boys who undergo the procedure. At a voluntary circumcision of a young man in rural Kenya recently the process seemed intense yet relatively simple. The issue is recovery. It takes 7 days to recover from VMMC. This is not a long period of time, but the risk of infection and other adverse events is high. There is also an issue of sexually active men not abstaining from sexual intercourse during their recovery period. This is an issue.

Non-Surgical Circumcision
Innovators who recognized the market for a medical device geared towards making circumcision recovery times less risky in resource limited areas developed a device that removes the cutting associated with circumcision. Without cutting one does not have to worry as much about any potential lapses in sterilized surgical equipment, post-operative infections, and intercourse during recovery time. Devices such as the ShangRing or PrePex are rings that are placed in such a way to block the blood flow to the foreskin for 7 days. This essentially causes the skin to die and fall off. The rings are placed by healthcare workers trained to apply them. After 7 days the ring is removed by the healthcare worker and any excess dead skin is trimmed with scissors.

Male circumcision is a controversial topic in many societies. Many believe it to be a form of mutilation and others believe it to be an important cultural practice. In some tribes it is a mark of belonging to a certain tribe. For those that do not circumcise it is for the same reason, to be unique and consistent in tradition. Interventions that clearly are in competition with tradition are controversial. Voila! Circumcision. The evidence for the ways in which circumcision is beneficial for HIV prevention is plentiful. There is frustration about the glacial pace of  VMMC implementation in areas affected by HIV/AIDS. There is limited information on how non-surgical circumcision is being received in the field, but the general sentiment is positive. The practical element seems more elusive.

Whatever one's opinion might be; the findings are interesting, the challenges for/against are fascinating, and the future is full of possibilities.

-Jasmine Buttolph, MPH