Table 4

Intensity of perinatal care, measured with GA-speciﬁc perinatal activity scores in Swedish healthcare regions for live-born infants

	Perinatal activity scores* (normalised mean scores) Healthcare regions
	A	B	C	D	E	F
22 weeks of gestation
T1 (2004–2007)/n=49	40	42	18	61	62	32
T2 (2014–2016)/n=74	51	66	44	93	85	53
T3 (2017–2019)/n=80	58	60	56	91	81	59
All time periods (22 weeks), PA scores, mean national average (min–max)/n=203	61 (18–93)
23 weeks of gestation
T1 (2004–2007)/n=101	67	85	66	79	92	53
T2 (2014–2016)/n=148	77	94	92	96	95	82
T3 (2017–2019)/n=115	85	90	82	92	82	69
All time periods (23 weeks), PA scores, mean national average (min–max)/n=364	84 (53–96)

Among the live-born infants at 22 weeks of gestation, regions with scores above national average had a mean score of 81 (range 61–93) and regions with scores below the national average had a mean score of 45 (range 18–60). With regard to live-born infants at 23 weeks, regions with scores above the national average had a mean score of 91 (range 84–96) and regions with scores below national average had a mean score of 73 (range 53–82).
*The perinatal activity score is a regional measure of intensity of perinatal care in the six healthcare regions. See ‘Methods’ section for definitions. Actual regional intervention rates in T1, T2 and T3 are shown in online supplemental efigure 1.
GA, gestational age.