Table 1 Demographics of participants

From: Multicenter observational study comparing sedation/analgesia protocols for laser photocoagulation treatment of retinopathy of prematurity

  Local anesthesia only (Group L) (n=15) Pentazocine (Group P) (n=11) Fentanyl (Group F) (n=11) AOS (Group I) (n=12)
GA (week per day) 26/6 (22/5–28/6) 25/5 (23/6–31/1) 26/4 (23/3–35/5)* 24/0 (23/1–25/4)*
BW at birth (g) 624 (492–1128) 660 (512–1390) 548 (326–2422) 594 (438–884)
CLD 13 (87%) 4 (36%)**,† 7 (64%) 12 (100%)**
IVH (grade 2 or more) 4 (13%) 2 (30%) 1 (17%) 6 (44%)
PMA at PC (week per day) 33/4 (30/2–38/3)*,† 35/2 (32/5–45/2) 37/2 (33/6–44/3)* 34/6 (32/1–37/5)
BW at PC (g) 1218 (725–2134)* 1772 (1111–2664)* 1288 (859–2720) 1604 (974–2186)
FiO2 at PC (%) 0.27 (0.21–0.38) 0.21 (0.21–0.30) 0.21 (0.21–0.30) 0.24 (0.21–0.35)
Hb at PC (g dl−1) 10.7 (8.4–12.7) 10.5 (7.8–13.7) 10.8 (8.8–18.5) 9.8 (6.4–12.9)
Respirator care at PC 8 (53%) 4 (36%)** 10 (91%) 12 (100%)**,†
  1. Abbreviations: AOS, air, oxygen and sevoflurane; BW, body weight; CLD, chronic lung disease; FiO2, fraction of inspiratory oxygen; GA, gestational age; Hb, hemoglobin; IVH, intraventricular hemorrhage; PC, photocoagulation; PMA, postmenstrual age.
  2. **P<0.01, *,†P<0.05, median (range) or number of patients (%).