"was significant lower" is correct and usable in written English.
You could use it when you want to emphasize that something decreased a lot or significantly more than what was expected. For example: "The actual result was significant lower than what we had predicted."
The PaC02 was significant lower (p = 0,048) with HFNC.
The UMD of −11.0 (95 % CI −18.3, −3.7) showing that the PRTEE score was significant lower for PRP than AB.
When a critical event occurred, the PaO2/FiO2 ratio before transport was significant lower (68 vs. 80 mmHg, p = 0.017).
Maximal PL was significant lower in non-i-sync mode than in partially or fully i-sync modes (p = 0.008).
PCNA expression was significant lower in the dwarf rats, but significantly increased when these animals were treated with GH.
The UMD was homogeneous (I 2 = 0) with a value of −1.1 (95 % CI −1.3, −0.8), showing that VAS was significant lower for PRP than AB.
In the TLH group, mean blood loss (173 mL) was significant lower compared to the LAVH group (457 mL), whereas length of surgery, uterus weight, and complication rates were comparable between the two groups.
In 116 patients the peripheral oxygen saturation (Sp02)/ fraction of inspired oxygen (Fi02) ratio was significant better (p = 0,000) with HFNC, the respiratory rate was significant lower (p = 0,000) with HFNC.
Although chlorophyll in the 3rd oldest leaves of 'TL3' was significant lower than in 'FR13A', 80% of 'TL3' seedlings survived 8 d submergence (Fig. 1d), thus demonstrating considerable resilience within the limitations of this study in not including a "submergence sensitive" control.
The accuracy of mapped sequence reads in the GA data set was significant lower than the other data sets.
The ratio of CpG island in the samples that showed approximate normal distribution and sufficient range (173 of 280) was significant lower than in the original set (1044 of 1505) (Chi-square test: Χ2 = 5.9, df = 1, p = 0.015).
