The phrase "a different pattern than" is correct and usable in written English.
It can be used when comparing two distinct patterns, typically in contexts involving analysis or observation.
Example: "The new design follows a different pattern than the previous version, which enhances its functionality."
Alternatives: "a different pattern from" or "a distinct pattern compared to".
In a related meta-analysis of structural MRI data from 1,022 patients and 1,415 controls, the ENIGMA-Bipolar Disorder Working Group found consistent differences across the subcortical regions, but in a different pattern than that characteristic of schizophrenia (Hibar et al. 2013a).
Movies like "It's Complicated" unfold at the box office in a different pattern than movies that are skewed younger; their success is based more on long-range playability and word of mouth than on instant impact.
"It is a different pattern than what we have seen during the preceding 200 years, [and] the biggest single explanation is that technology has been affecting far more middle-skilled jobs".
Serum levels of cytokines are known to follow a different pattern than monocyte gene expression (Mesman et al. 2014).
For example, in terms of duration of eye fixation, it would be important to know whether other participants exhibiting a different pattern than that of the participants in the present experiment would achieve a high percentage of correct responses in probes evaluating select and reject control relationships.
For the basic nuclear protein there was one clone with a different pattern than a simple tandem repeat.
Helicopter pilots fly at a different pattern altitude than fixed wings and this is to avoid the flow of fixed wing traffic.
Interestingly, culture eye-tracking studies that used face stimuli demonstrated a different pattern of cultural differences than those reported in this present study, which used complex scenes.
S3 showed a different pattern of porosity than S1 and S2.
Economists, for example, often refer to policies as having redistributive effects when they engender a different pattern of holdings than obtained previously.
With respect to (1) and (2) the answer is 'no.' The mere fact that some policy change leads to a different pattern of holdings than would have obtained had it not been implemented provides no reason to reject it.
