The mean AFOD and AFPS at onset of labor was found to be 1.
The snowstorm appearance, blizzard patterns and dense clusters of AFPs are seen usually at a higher AFOD values (> 0.
Based on the results of our study we observed that an AFOD value of < 0.
Our results confirm the hypothesis that lung maturity progresses with the AFOD surge culminating in onset of normal labor.
The Degeneracy of AFPS in determining AFOD makes the association only an approximation and not an equivalent to gold standard (AFOD).