Table 1. Unit cost of resource use items (2021–2022 prices).

Resource use items	Unit cost (£)	HRG code/details	Source
Medication
COCP (Microgynon) Ethinylestradiol 30 µg, Levonorgestrel 150 µg	0.94	Per pack (for 28 days preparation)	BNF 8432
Levonogestrel (Mirena) 20 µg/24 hours intrauterine device	88	Per device	BNF 8432
Medroxyprogesterone acetate (Depo-Provera) 150 mg/1 mL suspension for injection vials	6.01	Per vial	BNF 8432
Triptorelin (Decapeptyl SR) 3 mg (GnRHa)	69	Per vial	BNF 8432
Pain relief medication	0.97	Weighted average of participant pain relief medication	BNF 8432
Primary care visit
GP consultation (10 min)	45.17		PSSRU 202222
Further surgery
Removal of polyps	4369.71	MA09B	NHS Reference cost 2020/2133
Removal of fibroids	4369.71	MA09B	NHS Reference cost 2020/2133
Endometrial ablation	1416.51	MA12Z	NHS Reference cost 2020/2133
Laparoscopic hysterectomy	5935.16	MA08B	NHS Reference cost 2020/2133
Surgery for endometriosis via laparoscopy	4369.71	MA09B	NHS Reference cost 2020/2133
Test/investigations
Laparoscopy	3280.88	MA10Z	NHS Reference cost 2020/2133
Ultrasound	71.90	RD40Z	NHS Reference cost 2020/2133
Hysteroscopy	521.82	MA31Z	NHS Reference cost 2020/2133
Follow-up after surgery	235.39	WF01A	NHS Reference cost 2020/2133
Productivity loss
Full-time employee work absence	640*	Per week†	Office for National Statistics 202221
Part-time employee work absence	228*	Per week†	Office for National Statistics 202221

^***Excluding the employer National Insurance NI and pension contribution due to limited data availability.

^†Included in sensitivity analysis only.

BNF, British National Formulary; COCP, combined oral contraceptives pill; GnRHagonadotropin-releasing hormone analogue GPgeneral practitionerHRG, Healthcare Resource GroupNHSNational Health ServicePSSRU, Personal Social Services Research Unit