I got a test done recently, not really perfectly done, huge margin for error. My FEV1 was 2.9 L , FVC was 3.1 L and PEF was 550 L/min. I am trying to estimate if these values are normal for asian indians or Asians in general because as soon as I use GLI 2012 equation based on ethnicity race gender weight and height it gives me that my values fall within range with 80% as a min cut off but if I use what they used in Germany that I have lung issues according to spirometry.