<p>Title: Misses time component and too general, do facilities used for data collection represent an entire country?</p><p>Background: Ok&nbsp;</p><p>Methods: Tools for analysis not mentioned and how the test for significance was done</p><p>Results:&nbsp;</p><ul><li>The results main focus is on HP and NHP which are not reflected in the subject title.&nbsp;</li><li>Why has the author summarized results for females who are the less majority in all the waves?</li></ul><p>Conclusion: As noted above the author concludes for HP and NHP which is not clearly reflected from the beginning</p>