. 2013 Aug 1;8(8):e70499. doi: 10.1371/journal.pone.0070499

Table 1. Model fit of the proportion of methicillin-resistant Staphylococcus aureus for Oslo County and Health Region East to exponential time trend (A), linear time trend (B) and power law time trend (C) with sum of squared errors for three different fit functions and time t in months.

A	Exponential: a e^{b t}
	(95% CI)	(95% CI)	SSE
Oslo County¹	0.00732(0.00513–0.00951)	0.0102 (0.00783–0.0127)	0.02147
Health Region East (Tot)²	0.00431(0.00281–0.00581)	0.0204(0.0143–0.0264)	0.00197
Akershus University Hospital²	0.00979(0.00372–0.0159)	0.0218(0.0111–0.0324	0.0349
Vestre Viken, Asker and Bærum Hospital²	0.00356(0.000903–0.00620)	0.0167(0.00326–0.0301)	0.00505
Innlandet Hospital²	0.00261(0.000641–0.00459)	0.00646(−0.00901–0.0219)	0.00171
Østfold Hospital²	0.00223(0.000227–0.00423)	0.0268(0.0119–0.0417)	0.00519
Oslo University Hospital, Ullevål Hospital²	0.00451(0.00189–0.00713)	0.0190(0.00872–0.0292)	0.00556
B	Linear: a + bt
	(95% CI)	(95% CI)	SSE
Oslo County¹	0.00326(−0.000397–0.00692	0.000190(0.000151–0.000230)	0.02149
Health Region East (Tot)²	0.00203(−0.000356–0.00443)	0.000216(0.000161–0.000270)	0.001932
Akershus University Hospital²	0.000203(−0.00967–0.0101)	0.000636(0.000410–0.000869	0.0329
Vestre Viken, Asker and Bærum Hospital²	0.00126(−0.00254–0.00507)	0.000151(0.0000643–0.000238)	0.00489
Innlandet Hospital²	0.00268(0.000427–0.00494)	0.0000183(−0.0000332–0.0000670)	0.00172
Østfold Hospital²	0.00177(−0.00223–0.00577)	0.000151(0.0000592–0.000241)	0.00540
Oslo University Hospital, Ullevål Hospital²	0.00353(−0.000568–0.00762)	0.000174(0.0000799–0.000267)	0.00567
C	Power: at^b
	(95% CI)	(95% CI)	SSE
Oslo County¹	0.000501(−0.0000583–0.00106)	0.827(0.590–1.063)	0.0217
Health Region East (Tot)²	0.000568(−0.0000537–0.00119)	0.800(0.523–1.08)	0.00197
Akershus University Hospital²	0.000802(−0.000811–0.00241)	0.943(0.439–1.447)	0.0329
Vestre Viken, Asker and Bærum Hospital²	0.000526(−0.000702–0.00176)	0.725(0.132–1.317)	0.00486
Innlandet Hospital²	0.00214(−0.00121–0.00549)	0.135(−0.297–0.567)	0.00172
Østfold Hospital²	0.000203(−0.000385–0.000791)	0.977(0.254–1.700)	0.00546
Oslo University Hospital, Ullevål Hospital²	0.00108(−0.000729–0.00289)	0.623(0.194–1.052)	0.00577

Dataset I.

Dataset II.