Table 1.

Within-trial imputed healthcare and societal costs: summary statistics of the healthcare and societal costs per patient by mammogram follow-up frequency.

	Mammogram surveillance frequency
	Arm 1: annual			Arm 2: less frequent (2-yearly and 3-yearly)
Cost category	Mean	Median	SE	Mean	Median	SE	Mean difference
Healthcare perspective
Community-based health and social care	£960	£560	£1431	£1002	£682	£1206	£41
Prescribed medications	£43	£0	£205	£37	£0	£182	−£6
Admitted patient care	£3579	£541	£8058	£3553	£496	£8486	−£26
Outpatient care	£2864	£2021	£2976	£2631	£1839	£2990	−£234
Mammograms cost	£524	£576	£121	£206	£231	£100	−£319
Total healthcare costs	£7971	£4434	£10,250	£7428	£3991	£10,590	−£543
Societal perspective
Non-prescribed medications	£23	£0	£113	£20	£0	£92	−£3
Private and self-funded treatment	£372	£0	£2237	£232	£0	£1507	−£139
Other expenses	£214	£0	£1402	£172	£0	£1435	−£42
Travelling	£219	£109	£370	£188	£106	£269	−£31
Parking	£47	£15	£133	£44	£15	£131	−£3
Time off work	£634	£0	£2641	£499	£0	£2465	−£135
Incapacity benefits	£570	£0	£2819	£484	£0	£2651	−£86
Unpaid informal care	£2347	£0	£7608	£1848	£0	£6031	−£499
Time off work friends’ family	£150	£0	£1507	£87	£0	£840	−£63
Total societal costs	£12,546	£6867	£15,864	£11,003	£5745	£14,674	−£1543