Information recorded on GP medical record and referral letter; number (%).
| Intervention | Control | |||
|---|---|---|---|---|
| GP record | Referral letter | GP record | Referral letter | |
| n = 373 | n = 266 | n = 297 | n = 213 | |
| Information recorded | ||||
| Length of time trying | 373 (100) | 205 (77) | 297 (100) | 141 (66) |
| Fertility statusa | 373 (100) | 168 (63) | 297 (100) | 93 (44) |
| Cycle status recorded | 281 (75) | 144 (54) | 196 (66) | 103 (48) |
| <42-week cycle | 236 (63) | 115 (43) | 173 (58) | 87 (41) |
| Folate supplementation | 150 (40) | 41 (15) | 93 (31) | 19 (9) |
| Recorded comorbiditiesb | 78 (21) | 44 (17) | 56 (19) | 35 (16) |
| Smoking status recorded | 59 (16) | 23 (9) | 37 (12) | 17 (8) |
| Alcohol status recorded | 42 (11) | 15 (6) | 24 (8) | 10 (5) |
| Frequency of intercourse | 35 (9) | 7 (3) | 23 (8) | 9 (4) |
| Information on tubal status | 18 (5) | 14 (5) | 9 (3) | 7 (3) |
| Testicular advice given | 6 (2) | 3 (1) | 0 | 0 |
| Advice regarding drugs | 3 (1) | 1 | 1 | 1 |
| Investigations recorded | ||||
| Mid-luteal progesterone | 258 (69)c | 149 (56) | 208 (70)c | 112 (53) |
| FSH/LH | 220 (59)d | 113 (42) | 168 (57)d | 88 (41) |
| Semen analysis | 200 (54)e | 120 (45) | 152 (51)e | 92 (43) |
| Thyroid function tests | 172 (46) | 72 (27) | 154 (52) | 64 (30) |
| Full blood count | 153 (41) | 61 (23) | 111 (37) | 44 (21) |
| Prolactin | 92 (25) | 39 (15) | 70 (24) | 30 (14) |
| Rubella | 75 (20) | 38 (14) | 60 (20) | 27 (13) |
| Random blood glucose | 58 (16) | 21 (8) | 40 (13) | 16 (8) |
| Chlamydia | 62 (17) | 27 (10) | 23 (8) | 7 (3) |
| Oestrogen | 13 (3) | 6 (2) | 14 (5) | 7 (3) |
| Testosterone | 40 (11) | 12 (5) | 21 (7) | 11 (5) |
| Other | 79 (21) | 12 (5) | 58 (20) | 18 (8) |
↵a Primary, secondary, or tertiary infertility.
↵b Obesity 28%, polycystic ovary syndrome 25%, tubal pathology 22%, vasectomy 10%, chlamydia 5%, other 10%.
↵c Adjusted odds ratio (OR) = 1.1, P = 0.3.
↵d Adjusted OR = 1.1, P = 0.3.
↵e Adjusted OR = 1.1, P = 0.3. Other investigations included urea and electrolytes, liver function tests, sex hormone-binding globulin, and ultrasound scan. FSH = follicle-stimulating hormone. LH = luteinising hormone.